252411812 has 6 divisors (see below), whose sum is σ = 441720678. Its totient is φ = 126205904.

The previous prime is 252411787. The next prime is 252411877. The reversal of 252411812 is 218114252.

It can be written as a sum of positive squares in only one way, i.e., 208109476 + 44302336 = 14426^2 + 6656^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31551473 + ... + 31551480.

It is an arithmetic number, because the mean of its divisors is an integer number (73620113).

Almost surely, 2^252411812 is an apocalyptic number.

It is an amenable number.

252411812 is a deficient number, since it is larger than the sum of its proper divisors (189308866).

252411812 is a wasteful number, since it uses less digits than its factorization.

252411812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63102957 (or 63102955 counting only the distinct ones).

The product of its digits is 1280, while the sum is 26.

The square root of 252411812 is about 15887.4734303476. The cubic root of 252411812 is about 631.9798403279.

The spelling of 252411812 in words is "two hundred fifty-two million, four hundred eleven thousand, eight hundred twelve".