252208465 has 16 divisors (see below), whose sum is σ = 315939600. Its totient is φ = 193086720.

The previous prime is 252208457. The next prime is 252208471. The reversal of 252208465 is 564802252.

It can be written as a sum of positive squares in 8 ways, for example, as 26998416 + 225210049 = 5196^2 + 15007^2 .

It is not a de Polignac number, because 252208465 - 2³ = 252208457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252208465.

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, 111 + ... + 22459.

It is an arithmetic number, because the mean of its divisors is an integer number (19746225).

Almost surely, 2^252208465 is an apocalyptic number.

It is an amenable number.

252208465 is a deficient number, since it is larger than the sum of its proper divisors (63731135).

252208465 is a wasteful number, since it uses less digits than its factorization.

252208465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22452.

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 252208465 is about 15881.0725393470. The cubic root of 252208465 is about 631.8100837052.

The spelling of 252208465 in words is "two hundred fifty-two million, two hundred eight thousand, four hundred sixty-five".