252155544520000 has 210 divisors, whose sum is σ = 687273446093234. Its totient is φ = 91692923520000.

The previous prime is 252155544519973. The next prime is 252155544520013. The reversal of 252155544520000 is 25445551252.

It can be written as a sum of positive squares in 5 ways, for example, as 94431283315776 + 157724261204224 = 9717576^2 + 12558832^2 .

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 29 ways as a sum of consecutive naturals, for example, 21209127 + ... + 30889126.

Almost surely, 2^{252155544520000} is an apocalyptic number.

252155544520000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252155544520000 is an abundant number, since it is smaller than the sum of its proper divisors (435117901573234).

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

252155544520000 is an equidigital number, since it uses as much as digits as its factorization.

252155544520000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52098307 (or 52098271 counting only the distinct ones).

The product of its (nonzero) digits is 400000, while the sum is 40.

The spelling of 252155544520000 in words is "two hundred fifty-two trillion, one hundred fifty-five billion, five hundred forty-four million, five hundred twenty thousand".