51480388 has 12 divisors (see below), whose sum is σ = 91435792. Its totient is φ = 25355880.

The previous prime is 51480349. The next prime is 51480389. The reversal of 51480388 is 88308415.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (51480389) 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, 95778 + ... + 96313.

Almost surely, 2^51480388 is an apocalyptic number.

It is an amenable number.

51480388 is a deficient number, since it is larger than the sum of its proper divisors (39955404).

51480388 is a wasteful number, since it uses less digits than its factorization.

51480388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192162 (or 192160 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 51480388 is about 7174.9834843015. The cubic root of 51480388 is about 372.0037094477.

The spelling of 51480388 in words is "fifty-one million, four hundred eighty thousand, three hundred eighty-eight".