255539253600 has 1440 divisors, whose sum is σ = 1077020128800. Its totient is φ = 58525286400.

The previous prime is 255539253569. The next prime is 255539253611. The reversal of 255539253600 is 6352935552.

255539253600 is a `hidden beast` number, since 2 + 5 + 5 + 5 + 39 + 2 + 5 + 3 + 600 = 666.

It is a tau number, because it is divible by the number of its divisors (1440).

It is a super-2 number, since 2×255539253600² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 606981390 + ... + 606981810.

It is an arithmetic number, because the mean of its divisors is an integer number (747930645).

Almost surely, 2^255539253600 is an apocalyptic number.

255539253600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255539253600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (538510064400).

255539253600 is an abundant number, since it is smaller than the sum of its proper divisors (821480875200).

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

255539253600 is a wasteful number, since it uses less digits than its factorization.

255539253600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518 (or 496 counting only the distinct ones).

The product of its (nonzero) digits is 1215000, while the sum is 45.

The spelling of 255539253600 in words is "two hundred fifty-five billion, five hundred thirty-nine million, two hundred fifty-three thousand, six hundred".