255612229600 has 432 divisors, whose sum is σ = 805880420352. Its totient is φ = 77373204480.

The previous prime is 255612229573. The next prime is 255612229709. The reversal of 255612229600 is 6922216552.

It is a super-2 number, since 2×255612229600² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 21761329 + ... + 21773071.

It is an arithmetic number, because the mean of its divisors is an integer number (1865463936).

Almost surely, 2^255612229600 is an apocalyptic number.

255612229600 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 255612229600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (402940210176).

255612229600 is an abundant number, since it is smaller than the sum of its proper divisors (550268190752).

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

255612229600 is a wasteful number, since it uses less digits than its factorization.

255612229600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11819 (or 11793 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 255612229600 in words is "two hundred fifty-five billion, six hundred twelve million, two hundred twenty-nine thousand, six hundred".