252778610 has 32 divisors (see below), whose sum is σ = 550592640. Its totient is φ = 81568512.

The previous prime is 252778577. The next prime is 252778637. The reversal of 252778610 is 16877252.

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, 105020 + ... + 107399.

It is an arithmetic number, because the mean of its divisors is an integer number (17206020).

Almost surely, 2^252778610 is an apocalyptic number.

252778610 is an abundant number, since it is smaller than the sum of its proper divisors (297814030).

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

252778610 is a wasteful number, since it uses less digits than its factorization.

252778610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212450.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 252778610 is about 15899.0128624390. The cubic root of 252778610 is about 632.2858174849.

The spelling of 252778610 in words is "two hundred fifty-two million, seven hundred seventy-eight thousand, six hundred ten".