252516606520 has 16 divisors (see below), whose sum is σ = 568162364760. Its totient is φ = 101006642592.

The previous prime is 252516606487. The next prime is 252516606571. The reversal of 252516606520 is 25606615252.

252516606520 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 6312915163 = 252516606520 / (2 + 5 + 2 + 5 + 1 + 6 + 6 + 0 + 6 + 5 + 2 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3156457542 + ... + 3156457621.

Almost surely, 2^252516606520 is an apocalyptic number.

252516606520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252516606520 is an abundant number, since it is smaller than the sum of its proper divisors (315645758240).

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

252516606520 is a wasteful number, since it uses less digits than its factorization.

252516606520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6312915174 (or 6312915170 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 252516606520 in words is "two hundred fifty-two billion, five hundred sixteen million, six hundred six thousand, five hundred twenty".