51913008 has 80 divisors (see below), whose sum is σ = 170306560. Its totient is φ = 14831424.

The previous prime is 51912989. The next prime is 51913009. The reversal of 51913008 is 80031915.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (51913009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5560 + ... + 11607.

It is an arithmetic number, because the mean of its divisors is an integer number (2128832).

Almost surely, 2^51913008 is an apocalyptic number.

It is an amenable number.

51913008 is an abundant number, since it is smaller than the sum of its proper divisors (118393552).

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

51913008 is a wasteful number, since it uses less digits than its factorization.

51913008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17191 (or 17179 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 51913008 is about 7205.0682161934. The cubic root of 51913008 is about 373.0428593713.

The spelling of 51913008 in words is "fifty-one million, nine hundred thirteen thousand, eight".