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54529395869988 = 223413172187323917
BaseRepresentation
bin11000110011000000111010…
…10001010100100100100100
321011001221220100120121010000
430121200131101110210210
524121402200320314423
6311550243022101300
714325422156162514
oct1431403521244444
9234057810517100
1054529395869988
1116413872432386
1261481b441a830
13245713b81ab90
14d67345c75844
1564867c2e0843
hex31981d454924

54529395869988 has 360 divisors, whose sum is σ = 163171486346792. Its totient is φ = 15782227329024.

The previous prime is 54529395869909. The next prime is 54529395869989. The reversal of 54529395869988 is 88996859392545.

It is a happy number.

54529395869988 is a `hidden beast` number, since 5 + 4 + 52 + 9 + 395 + 8 + 6 + 99 + 88 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 14744309788224 + 39785086081764 = 3839832^2 + 6307542^2 .

It is a junction number, because it is equal to n+sod(n) for n = 54529395869898 and 54529395869907.

It is not an unprimeable number, because it can be changed into a prime (54529395869989) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2279931006 + ... + 2279954922.

Almost surely, 254529395869988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54529395869988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81585743173396).

54529395869988 is an abundant number, since it is smaller than the sum of its proper divisors (108642090476804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54529395869988 is a wasteful number, since it uses less digits than its factorization.

54529395869988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25853 (or 25825 counting only the distinct ones).

The product of its digits is 60466176000, while the sum is 90.

The spelling of 54529395869988 in words is "fifty-four trillion, five hundred twenty-nine billion, three hundred ninety-five million, eight hundred sixty-nine thousand, nine hundred eighty-eight".