252403937 has 4 divisors (see below), whose sum is σ = 258273840. Its totient is φ = 246534036.

The previous prime is 252403933. The next prime is 252403979. The reversal of 252403937 is 739304252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 252403937 - 2² = 252403933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 252403897 and 252403906.

It is not an unprimeable number, because it can be changed into a prime (252403933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2934887 + ... + 2934972.

It is an arithmetic number, because the mean of its divisors is an integer number (64568460).

Almost surely, 2^252403937 is an apocalyptic number.

It is an amenable number.

252403937 is a deficient number, since it is larger than the sum of its proper divisors (5869903).

252403937 is an equidigital number, since it uses as much as digits as its factorization.

252403937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5869902.

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 252403937 is about 15887.2255916507. The cubic root of 252403937 is about 631.9732678767.

The spelling of 252403937 in words is "two hundred fifty-two million, four hundred three thousand, nine hundred thirty-seven".