51244608 has 28 divisors (see below), whose sum is σ = 135585200. Its totient is φ = 17081472.

The previous prime is 51244603. The next prime is 51244619. The reversal of 51244608 is 80644215.

It is not an unprimeable number, because it can be changed into a prime (51244603) 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, 133258 + ... + 133641.

Almost surely, 2^51244608 is an apocalyptic number.

It is an amenable number.

51244608 is an abundant number, since it is smaller than the sum of its proper divisors (84340592).

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

51244608 is a wasteful number, since it uses less digits than its factorization.

51244608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266914 (or 266904 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 51244608 is about 7158.5339281168. The cubic root of 51244608 is about 371.4349149663.

The spelling of 51244608 in words is "fifty-one million, two hundred forty-four thousand, six hundred eight".