51267904 has 14 divisors (see below), whose sum is σ = 101734874. Its totient is φ = 25633920.

The previous prime is 51267899. The next prime is 51267913. The reversal of 51267904 is 40976215.

It can be written as a sum of positive squares in only one way, i.e., 51265600 + 2304 = 7160^2 + 48^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51267904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400467 + ... + 400594.

Almost surely, 2^51267904 is an apocalyptic number.

It is an amenable number.

51267904 is a deficient number, since it is larger than the sum of its proper divisors (50466970).

51267904 is an equidigital number, since it uses as much as digits as its factorization.

51267904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801073 (or 801063 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 51267904 is about 7160.1608920470. The cubic root of 51267904 is about 371.4911916962.

The spelling of 51267904 in words is "fifty-one million, two hundred sixty-seven thousand, nine hundred four".