51057252144 has 60 divisors (see below), whose sum is σ = 149101985136. Its totient is φ = 16279122816.

The previous prime is 51057252133. The next prime is 51057252173. The reversal of 51057252144 is 44125275015.

51057252144 is a `hidden beast` number, since 510 + 57 + 2 + 52 + 1 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 51057252099 and 51057252108.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7704607 + ... + 7711230.

Almost surely, 2^51057252144 is an apocalyptic number.

It is an amenable number.

51057252144 is an abundant number, since it is smaller than the sum of its proper divisors (98044732992).

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

51057252144 is a wasteful number, since it uses less digits than its factorization.

51057252144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15415874 (or 15415865 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 36.

The spelling of 51057252144 in words is "fifty-one billion, fifty-seven million, two hundred fifty-two thousand, one hundred forty-four".