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54237112222225 = 521092135132
BaseRepresentation
bin11000101010100000011111…
…10011101100001000010001
321010001000110121022212200111
430111100033303230020101
524102110101212102400
6311204104013121321
714265334126154662
oct1425201763541021
9233030417285614
1054237112222225
1116310914988799
1260bb623189241
1324356cb53b58a
14d57139883369
15640c7229d3ba
hex31540fcec211

54237112222225 has 27 divisors (see below), whose sum is σ = 67881712579443. Its totient is φ = 42988437728640.

The previous prime is 54237112222199. The next prime is 54237112222229. The reversal of 54237112222225 is 52222221173245.

The square root of 54237112222225 is 7364585.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 22361331915729 + 31875780306496 = 4728777^2 + 5645864^2 .

It is not a de Polignac number, because 54237112222225 - 29 = 54237112221713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54237112222229) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 4013692069 + ... + 4013705581.

Almost surely, 254237112222225 is an apocalyptic number.

54237112222225 is the 7364585-th square number.

54237112222225 is the 3682293-rd centered octagonal number.

It is an amenable number.

54237112222225 is a deficient number, since it is larger than the sum of its proper divisors (13644600357218).

54237112222225 is an frugal number, since it uses more digits than its factorization.

54237112222225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27254 (or 13627 counting only the distinct ones).

The product of its digits is 268800, while the sum is 40.

The spelling of 54237112222225 in words is "fifty-four trillion, two hundred thirty-seven billion, one hundred twelve million, two hundred twenty-two thousand, two hundred twenty-five".

Divisors: 1 5 25 109 545 2725 11881 13513 59405 67565 297025 337825 1472917 7364585 36822925 160547953 182601169 802739765 913005845 4013698825 4565029225 19903527421 99517637105 497588185525 2169484488889 10847422444445 54237112222225