51495560 has 32 divisors (see below), whose sum is σ = 116723160. Its totient is φ = 20445696.

The previous prime is 51495547. The next prime is 51495581. The reversal of 51495560 is 6559415.

It can be written as a sum of positive squares in 4 ways, for example, as 26234884 + 25260676 = 5122^2 + 5026^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51495560.

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, 782 + ... + 10178.

Almost surely, 2^51495560 is an apocalyptic number.

It is an amenable number.

51495560 is an abundant number, since it is smaller than the sum of its proper divisors (65227600).

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

51495560 is a wasteful number, since it uses less digits than its factorization.

51495560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9545 (or 9541 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 51495560 is about 7176.0406910775. The cubic root of 51495560 is about 372.0402507801.

The spelling of 51495560 in words is "fifty-one million, four hundred ninety-five thousand, five hundred sixty".