252205525251 has 12 divisors (see below), whose sum is σ = 365860378728. Its totient is φ = 167415397344.

The previous prime is 252205525241. The next prime is 252205525267. The reversal of 252205525251 is 152525502252.

252205525251 is a `hidden beast` number, since 2 + 5 + 2 + 2 + 0 + 552 + 52 + 51 = 666.

It is not a de Polignac number, because 252205525251 - 2¹⁹ = 252205000963 is a prime.

It is a super-2 number, since 2×252205525251² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (252205525241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60132745 + ... + 60136938.

It is an arithmetic number, because the mean of its divisors is an integer number (30488364894).

Almost surely, 2^252205525251 is an apocalyptic number.

252205525251 is a deficient number, since it is larger than the sum of its proper divisors (113654853477).

252205525251 is a wasteful number, since it uses less digits than its factorization.

252205525251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120269922 (or 120269919 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 36.

The spelling of 252205525251 in words is "two hundred fifty-two billion, two hundred five million, five hundred twenty-five thousand, two hundred fifty-one".