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54880425 = 32521491637
BaseRepresentation
bin1101000101011…
…0100010101001
310211021012210100
43101112202221
5103022133200
65240140013
71234322145
oct321264251
9124235710
1054880425
1128a84526
1216467609
13b4a6932
147408225
154c40d00
hex34568a9

54880425 has 36 divisors (see below), whose sum is σ = 99017100. Its totient is φ = 29055360.

The previous prime is 54880421. The next prime is 54880429. The reversal of 54880425 is 52408845.

It is an interprime number because it is at equal distance from previous prime (54880421) and next prime (54880429).

It can be written as a sum of positive squares in 6 ways, for example, as 20903184 + 33977241 = 4572^2 + 5829^2 .

It is not a de Polignac number, because 54880425 - 22 = 54880421 is a prime.

It is a super-2 number, since 2×548804252 = 6023722096361250, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 54880425.

It is not an unprimeable number, because it can be changed into a prime (54880421) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 32707 + ... + 34343.

It is an arithmetic number, because the mean of its divisors is an integer number (2750475).

Almost surely, 254880425 is an apocalyptic number.

It is an amenable number.

54880425 is a deficient number, since it is larger than the sum of its proper divisors (44136675).

54880425 is a wasteful number, since it uses less digits than its factorization.

54880425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1802 (or 1794 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

The square root of 54880425 is about 7408.1323557291. The cubic root of 54880425 is about 380.0194472965.

The spelling of 54880425 in words is "fifty-four million, eight hundred eighty thousand, four hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 75 149 225 447 745 1341 1637 2235 3725 4911 6705 8185 11175 14733 24555 33525 40925 73665 122775 243913 368325 731739 1219565 2195217 3658695 6097825 10976085 18293475 54880425