51273008 has 40 divisors (see below), whose sum is σ = 103326720. Its totient is φ = 24621120.

The previous prime is 51272999. The next prime is 51273017. The reversal of 51273008 is 80037215.

It is an interprime number because it is at equal distance from previous prime (51272999) and next prime (51273017).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82523 + ... + 83141.

It is an arithmetic number, because the mean of its divisors is an integer number (2583168).

Almost surely, 2^51273008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51273008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51663360).

51273008 is an abundant number, since it is smaller than the sum of its proper divisors (52053712).

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

51273008 is a wasteful number, since it uses less digits than its factorization.

51273008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825 (or 819 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 51273008 is about 7160.5172997487. The cubic root of 51273008 is about 371.5035192799.

The spelling of 51273008 in words is "fifty-one million, two hundred seventy-three thousand, eight".