51233808 has 20 divisors (see below), whose sum is σ = 132354128. Its totient is φ = 17077920.

The previous prime is 51233803. The next prime is 51233837. The reversal of 51233808 is 80833215.

It is a happy number.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (51233803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 533638 + ... + 533733.

Almost surely, 2^51233808 is an apocalyptic number.

It is an amenable number.

51233808 is an abundant number, since it is smaller than the sum of its proper divisors (81120320).

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

51233808 is a wasteful number, since it uses less digits than its factorization.

51233808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067382 (or 1067376 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 51233808 is about 7157.7795439647. The cubic root of 51233808 is about 371.4088193497.

The spelling of 51233808 in words is "fifty-one million, two hundred thirty-three thousand, eight hundred eight".