51447712 has 24 divisors (see below), whose sum is σ = 107246916. Its totient is φ = 24210432.

The previous prime is 51447709. The next prime is 51447719. The reversal of 51447712 is 21774415.

It can be written as a sum of positive squares in 2 ways, for example, as 40398736 + 11048976 = 6356^2 + 3324^2 .

It is not an unprimeable number, because it can be changed into a prime (51447719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46743 + ... + 47830.

Almost surely, 2^51447712 is an apocalyptic number.

It is an amenable number.

51447712 is an abundant number, since it is smaller than the sum of its proper divisors (55799204).

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

51447712 is a wasteful number, since it uses less digits than its factorization.

51447712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94600 (or 94592 counting only the distinct ones).

The product of its digits is 7840, while the sum is 31.

The square root of 51447712 is about 7172.7060444438. The cubic root of 51447712 is about 371.9249858378.

The spelling of 51447712 in words is "fifty-one million, four hundred forty-seven thousand, seven hundred twelve".