51233136 has 40 divisors (see below), whose sum is σ = 133106064. Its totient is φ = 16980480.

The previous prime is 51233129. The next prime is 51233153. The reversal of 51233136 is 63133215.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5740 + ... + 11636.

Almost surely, 2^51233136 is an apocalyptic number.

It is an amenable number.

51233136 is an abundant number, since it is smaller than the sum of its proper divisors (81872928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51233136 is a wasteful number, since it uses less digits than its factorization.

51233136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6089 (or 6083 counting only the distinct ones).

The product of its digits is 1620, while the sum is 24.

The square root of 51233136 is about 7157.7326018789. The cubic root of 51233136 is about 371.4071955013.

The spelling of 51233136 in words is "fifty-one million, two hundred thirty-three thousand, one hundred thirty-six".