51480486 has 24 divisors (see below), whose sum is σ = 116391600. Its totient is φ = 16413936.

The previous prime is 51480469. The next prime is 51480497. The reversal of 51480486 is 68408415.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 51480486.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61761 + ... + 62588.

It is an arithmetic number, because the mean of its divisors is an integer number (4849650).

Almost surely, 2^51480486 is an apocalyptic number.

51480486 is an abundant number, since it is smaller than the sum of its proper divisors (64911114).

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

51480486 is a wasteful number, since it uses less digits than its factorization.

51480486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124380 (or 124377 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 51480486 is about 7174.9903135823. The cubic root of 51480486 is about 372.0039455010.

The spelling of 51480486 in words is "fifty-one million, four hundred eighty thousand, four hundred eighty-six".