51304456 has 32 divisors (see below), whose sum is σ = 110327040. Its totient is φ = 21909888.

The previous prime is 51304441. The next prime is 51304471. The reversal of 51304456 is 65440315.

It is an interprime number because it is at equal distance from previous prime (51304441) and next prime (51304471).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16065 + ... + 18991.

It is an arithmetic number, because the mean of its divisors is an integer number (3447720).

Almost surely, 2^51304456 is an apocalyptic number.

51304456 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

51304456 is an abundant number, since it is smaller than the sum of its proper divisors (59022584).

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

51304456 is a wasteful number, since it uses less digits than its factorization.

51304456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3253 (or 3249 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 51304456 is about 7162.7128938692. The cubic root of 51304456 is about 371.5794569279.

The spelling of 51304456 in words is "fifty-one million, three hundred four thousand, four hundred fifty-six".