252715506 has 32 divisors (see below), whose sum is σ = 539275968. Its totient is φ = 78673920.

The previous prime is 252715481. The next prime is 252715517. The reversal of 252715506 is 605517252.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3906 + ... + 22818.

It is an arithmetic number, because the mean of its divisors is an integer number (16852374).

Almost surely, 2^252715506 is an apocalyptic number.

252715506 is an abundant number, since it is smaller than the sum of its proper divisors (286560462).

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

252715506 is a wasteful number, since it uses less digits than its factorization.

252715506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19066.

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 252715506 is about 15897.0282128453. The cubic root of 252715506 is about 632.2331982056.

The spelling of 252715506 in words is "two hundred fifty-two million, seven hundred fifteen thousand, five hundred six".