51470872 has 32 divisors (see below), whose sum is σ = 101088000. Its totient is φ = 24522784.

The previous prime is 51470843. The next prime is 51470899. The reversal of 51470872 is 27807415.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85629 + ... + 86227.

It is an arithmetic number, because the mean of its divisors is an integer number (3159000).

Almost surely, 2^51470872 is an apocalyptic number.

It is an amenable number.

51470872 is a deficient number, since it is larger than the sum of its proper divisors (49617128).

51470872 is a wasteful number, since it uses less digits than its factorization.

51470872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095 (or 1091 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 51470872 is about 7174.3203162390. The cubic root of 51470872 is about 371.9807867673.

The spelling of 51470872 in words is "fifty-one million, four hundred seventy thousand, eight hundred seventy-two".