51879456 has 36 divisors (see below), whose sum is σ = 147533022. Its totient is φ = 17293056.

The previous prime is 51879433. The next prime is 51879469. The reversal of 51879456 is 65497815.

It can be written as a sum of positive squares in only one way, i.e., 28259856 + 23619600 = 5316^2 + 4860^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 89781 + ... + 90356.

Almost surely, 2^51879456 is an apocalyptic number.

It is an amenable number.

51879456 is an abundant number, since it is smaller than the sum of its proper divisors (95653566).

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

51879456 is a wasteful number, since it uses less digits than its factorization.

51879456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180153 (or 180142 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 51879456 is about 7202.7394788372. The cubic root of 51879456 is about 372.9624746922.

The spelling of 51879456 in words is "fifty-one million, eight hundred seventy-nine thousand, four hundred fifty-six".