51079808 has 32 divisors (see below), whose sum is σ = 109591860. Its totient is φ = 23574528.

The previous prime is 51079801. The next prime is 51079811. The reversal of 51079808 is 80897015.

It can be written as a sum of positive squares in 2 ways, for example, as 41886784 + 9193024 = 6472^2 + 3032^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (51079801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13685 + ... + 17012.

Almost surely, 2^51079808 is an apocalyptic number.

It is an amenable number.

51079808 is an abundant number, since it is smaller than the sum of its proper divisors (58512052).

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

51079808 is a wasteful number, since it uses less digits than its factorization.

51079808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30724 (or 30712 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 38.

The square root of 51079808 is about 7147.0139219117. The cubic root of 51079808 is about 371.0363155651.

The spelling of 51079808 in words is "fifty-one million, seventy-nine thousand, eight hundred eight".