252540555 has 16 divisors (see below), whose sum is σ = 417998880. Its totient is φ = 130043648.

The previous prime is 252540517. The next prime is 252540557. The reversal of 252540555 is 555045252.

It is a cyclic number.

It is not a de Polignac number, because 252540555 - 2²⁶ = 185431691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252540557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289842 + ... + 290711.

It is an arithmetic number, because the mean of its divisors is an integer number (26124930).

Almost surely, 2^252540555 is an apocalyptic number.

252540555 is a deficient number, since it is larger than the sum of its proper divisors (165458325).

252540555 is a wasteful number, since it uses less digits than its factorization.

252540555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580590.

The product of its (nonzero) digits is 50000, while the sum is 33.

The square root of 252540555 is about 15891.5246279267. The cubic root of 252540555 is about 632.0872694676.

The spelling of 252540555 in words is "two hundred fifty-two million, five hundred forty thousand, five hundred fifty-five".