51179428 has 12 divisors (see below), whose sum is σ = 91469952. Its totient is φ = 25045160.

The previous prime is 51179413. The next prime is 51179467. The reversal of 51179428 is 82497115.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135928 + ... + 136303.

It is an arithmetic number, because the mean of its divisors is an integer number (7622496).

Almost surely, 2^51179428 is an apocalyptic number.

It is an amenable number.

51179428 is a deficient number, since it is larger than the sum of its proper divisors (40290524).

51179428 is a wasteful number, since it uses less digits than its factorization.

51179428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272282 (or 272280 counting only the distinct ones).

The product of its digits is 20160, while the sum is 37.

The square root of 51179428 is about 7153.9798713723. The cubic root of 51179428 is about 371.2773673364.

The spelling of 51179428 in words is "fifty-one million, one hundred seventy-nine thousand, four hundred twenty-eight".