51479374 has 4 divisors (see below), whose sum is σ = 77219064. Its totient is φ = 25739686.

The previous prime is 51479369. The next prime is 51479401. The reversal of 51479374 is 47397415.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12869842 + ... + 12869845.

It is an arithmetic number, because the mean of its divisors is an integer number (19304766).

Almost surely, 2^51479374 is an apocalyptic number.

51479374 is a deficient number, since it is larger than the sum of its proper divisors (25739690).

51479374 is a wasteful number, since it uses less digits than its factorization.

51479374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25739689.

The product of its digits is 105840, while the sum is 40.

The square root of 51479374 is about 7174.9128217700. The cubic root of 51479374 is about 372.0012670015.

The spelling of 51479374 in words is "fifty-one million, four hundred seventy-nine thousand, three hundred seventy-four".