51703812 has 24 divisors (see below), whose sum is σ = 134047200. Its totient is φ = 17234568.

The previous prime is 51703811. The next prime is 51703831. The reversal of 51703812 is 21830715.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (51703811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239262 + ... + 239477.

It is an arithmetic number, because the mean of its divisors is an integer number (5585300).

Almost surely, 2^51703812 is an apocalyptic number.

It is an amenable number.

51703812 is an abundant number, since it is smaller than the sum of its proper divisors (82343388).

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

51703812 is a wasteful number, since it uses less digits than its factorization.

51703812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478752 (or 478744 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 51703812 is about 7190.5362804175. The cubic root of 51703812 is about 372.5410960169.

The spelling of 51703812 in words is "fifty-one million, seven hundred three thousand, eight hundred twelve".