51236992 has 32 divisors (see below), whose sum is σ = 102396780. Its totient is φ = 25537536.

The previous prime is 51236981. The next prime is 51237001. The reversal of 51236992 is 29963215.

It can be written as a sum of positive squares in 2 ways, for example, as 39237696 + 11999296 = 6264^2 + 3464^2 .

It is a tau number, because it is divible by the number of its divisors (32).

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, 78138 + ... + 78790.

Almost surely, 2^51236992 is an apocalyptic number.

It is an amenable number.

51236992 is a deficient number, since it is larger than the sum of its proper divisors (51159788).

51236992 is an equidigital number, since it uses as much as digits as its factorization.

51236992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280 (or 1268 counting only the distinct ones).

The product of its digits is 29160, while the sum is 37.

The square root of 51236992 is about 7158.0019558533. The cubic root of 51236992 is about 371.4165131053.

It can be divided in two parts, 512 and 36992, that multiplied together give a square (18939904 = 4352²).

The spelling of 51236992 in words is "fifty-one million, two hundred thirty-six thousand, nine hundred ninety-two".