51407572264 has 48 divisors (see below), whose sum is σ = 97602585660. Its totient is φ = 25384128000.

The previous prime is 51407572261. The next prime is 51407572283. The reversal of 51407572264 is 46227570415.

It can be written as a sum of positive squares in 6 ways, for example, as 51044364900 + 363207364 = 225930^2 + 19058^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51407572264.

It is not an unprimeable number, because it can be changed into a prime (51407572261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53942412 + ... + 53943364.

Almost surely, 2^51407572264 is an apocalyptic number.

It is an amenable number.

51407572264 is a deficient number, since it is larger than the sum of its proper divisors (46195013396).

51407572264 is a wasteful number, since it uses less digits than its factorization.

51407572264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1822 (or 1717 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 43.

The spelling of 51407572264 in words is "fifty-one billion, four hundred seven million, five hundred seventy-two thousand, two hundred sixty-four".