51263456 has 24 divisors (see below), whose sum is σ = 102146184. Its totient is φ = 25321600.

The previous prime is 51263431. The next prime is 51263461. The reversal of 51263456 is 65436215.

51263456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 6995 + ... + 12306.

It is an arithmetic number, because the mean of its divisors is an integer number (4256091).

Almost surely, 2^51263456 is an apocalyptic number.

It is an amenable number.

51263456 is a deficient number, since it is larger than the sum of its proper divisors (50882728).

51263456 is a wasteful number, since it uses less digits than its factorization.

51263456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19394 (or 19386 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 51263456 is about 7159.8502777642. The cubic root of 51263456 is about 371.4804478683.

The spelling of 51263456 in words is "fifty-one million, two hundred sixty-three thousand, four hundred fifty-six".