252639854 has 8 divisors (see below), whose sum is σ = 379036560. Its totient is φ = 126294336.

The previous prime is 252639841. The next prime is 252639869. The reversal of 252639854 is 458936252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3902 + ... + 22814.

It is an arithmetic number, because the mean of its divisors is an integer number (47379570).

Almost surely, 2^252639854 is an apocalyptic number.

252639854 is a deficient number, since it is larger than the sum of its proper divisors (126396706).

252639854 is a wasteful number, since it uses less digits than its factorization.

252639854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25594.

The product of its digits is 518400, while the sum is 44.

The square root of 252639854 is about 15894.6485963044. The cubic root of 252639854 is about 632.1701042280.

The spelling of 252639854 in words is "two hundred fifty-two million, six hundred thirty-nine thousand, eight hundred fifty-four".