51005051560 has 16 divisors (see below), whose sum is σ = 114761366100. Its totient is φ = 20402020608.

The previous prime is 51005051483. The next prime is 51005051621. The reversal of 51005051560 is 6515050015.

It can be written as a sum of positive squares in 2 ways, for example, as 46120998564 + 4884052996 = 214758^2 + 69886^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 637563105 + ... + 637563184.

Almost surely, 2^51005051560 is an apocalyptic number.

It is an amenable number.

51005051560 is an abundant number, since it is smaller than the sum of its proper divisors (63756314540).

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

51005051560 is a wasteful number, since it uses less digits than its factorization.

51005051560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275126300 (or 1275126296 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 28.

The spelling of 51005051560 in words is "fifty-one billion, five million, fifty-one thousand, five hundred sixty".