252259090 has 64 divisors (see below), whose sum is σ = 501147648. Its totient is φ = 91008000.

The previous prime is 252259069. The next prime is 252259097. The reversal of 252259090 is 90952252.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (252259097) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 795612 + ... + 795928.

It is an arithmetic number, because the mean of its divisors is an integer number (7830432).

Almost surely, 2^252259090 is an apocalyptic number.

252259090 is a deficient number, since it is larger than the sum of its proper divisors (248888558).

252259090 is a wasteful number, since it uses less digits than its factorization.

252259090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 252259090 is about 15882.6663378666. Note that the first 3 decimals coincide. The cubic root of 252259090 is about 631.8523546173.

The spelling of 252259090 in words is "two hundred fifty-two million, two hundred fifty-nine thousand, ninety".