51272456 has 16 divisors (see below), whose sum is σ = 96213840. Its totient is φ = 25615440.

The previous prime is 51272453. The next prime is 51272461. The reversal of 51272456 is 65427215.

It is not an unprimeable number, because it can be changed into a prime (51272453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14495 + ... + 17681.

It is an arithmetic number, because the mean of its divisors is an integer number (6013365).

Almost surely, 2^51272456 is an apocalyptic number.

It is an amenable number.

51272456 is a deficient number, since it is larger than the sum of its proper divisors (44941384).

51272456 is a wasteful number, since it uses less digits than its factorization.

51272456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5204 (or 5200 counting only the distinct ones).

The product of its digits is 16800, while the sum is 32.

The square root of 51272456 is about 7160.4787549437. The cubic root of 51272456 is about 371.5021860854.

The spelling of 51272456 in words is "fifty-one million, two hundred seventy-two thousand, four hundred fifty-six".