51957480 has 32 divisors (see below), whose sum is σ = 155872800. Its totient is φ = 13855296.

The previous prime is 51957469. The next prime is 51957511. The reversal of 51957480 is 8475915.

51957480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216370 + ... + 216609.

It is an arithmetic number, because the mean of its divisors is an integer number (4871025).

Almost surely, 2^51957480 is an apocalyptic number.

It is an amenable number.

51957480 is an abundant number, since it is smaller than the sum of its proper divisors (103915320).

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

51957480 is a wasteful number, since it uses less digits than its factorization.

51957480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432993 (or 432989 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 51957480 is about 7208.1537164519. The cubic root of 51957480 is about 373.1493530845.

The spelling of 51957480 in words is "fifty-one million, nine hundred fifty-seven thousand, four hundred eighty".