51276808 has 16 divisors (see below), whose sum is σ = 104884560. Its totient is φ = 23307600.

The previous prime is 51276793. The next prime is 51276817. The reversal of 51276808 is 80867215.

It is a super-2 number, since 2×51276808² = 5258622077337728, which contains 22 as substring.

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, 291258 + ... + 291433.

It is an arithmetic number, because the mean of its divisors is an integer number (6555285).

Almost surely, 2^51276808 is an apocalyptic number.

It is an amenable number.

51276808 is an abundant number, since it is smaller than the sum of its proper divisors (53607752).

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

51276808 is a wasteful number, since it uses less digits than its factorization.

51276808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582708 (or 582704 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 51276808 is about 7160.7826387903. The cubic root of 51276808 is about 371.5126968085.

It can be divided in two parts, 5127 and 6808, that added together give a triangular number (11935 = T₁₅₄).

The spelling of 51276808 in words is "fifty-one million, two hundred seventy-six thousand, eight hundred eight".