51157008 has 100 divisors (see below), whose sum is σ = 169245120. Its totient is φ = 14613696.

The previous prime is 51156983. The next prime is 51157019. The reversal of 51157008 is 80075115.

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6253 + ... + 11891.

Almost surely, 2^51157008 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 51157008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84622560).

51157008 is an abundant number, since it is smaller than the sum of its proper divisors (118088112).

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

51157008 is a wasteful number, since it uses less digits than its factorization.

51157008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5666 (or 5651 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 27.

The square root of 51157008 is about 7152.4127397683. The cubic root of 51157008 is about 371.2231446751.

The spelling of 51157008 in words is "fifty-one million, one hundred fifty-seven thousand, eight".