252903815 has 8 divisors (see below), whose sum is σ = 321336720. Its totient is φ = 190421632.

The previous prime is 252903811. The next prime is 252903821. The reversal of 252903815 is 518309252.

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

It is a cyclic number.

It is not a de Polignac number, because 252903815 - 2² = 252903811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252903811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1487585 + ... + 1487754.

It is an arithmetic number, because the mean of its divisors is an integer number (40167090).

Almost surely, 2^252903815 is an apocalyptic number.

252903815 is a deficient number, since it is larger than the sum of its proper divisors (68432905).

252903815 is a wasteful number, since it uses less digits than its factorization.

252903815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2975361.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 252903815 is about 15902.9498835908. The cubic root of 252903815 is about 632.3901937727.

The spelling of 252903815 in words is "two hundred fifty-two million, nine hundred three thousand, eight hundred fifteen".