51279670 has 48 divisors (see below), whose sum is σ = 105276240. Its totient is φ = 17926272.

The previous prime is 51279659. The next prime is 51279707. The reversal of 51279670 is 7697215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31312 + ... + 32908.

It is an arithmetic number, because the mean of its divisors is an integer number (2193255).

Almost surely, 2^51279670 is an apocalyptic number.

51279670 is an abundant number, since it is smaller than the sum of its proper divisors (53996570).

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

51279670 is a wasteful number, since it uses less digits than its factorization.

51279670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649 (or 1636 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 51279670 is about 7160.9824744933. The cubic root of 51279670 is about 371.5196086373.

The spelling of 51279670 in words is "fifty-one million, two hundred seventy-nine thousand, six hundred seventy".