252501290 has 16 divisors (see below), whose sum is σ = 454696200. Its totient is φ = 100957440.

The previous prime is 252501287. The next prime is 252501311. The reversal of 252501290 is 92105252.

It can be written as a sum of positive squares in 4 ways, for example, as 32364721 + 220136569 = 5689^2 + 14837^2 .

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30830 + ... + 38150.

Almost surely, 2^252501290 is an apocalyptic number.

252501290 is a deficient number, since it is larger than the sum of its proper divisors (202194910).

252501290 is a wasteful number, since it uses less digits than its factorization.

252501290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10777.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 252501290 is about 15890.2891729509. The cubic root of 252501290 is about 632.0545087980.

The spelling of 252501290 in words is "two hundred fifty-two million, five hundred one thousand, two hundred ninety".