51049841560 has 32 divisors (see below), whose sum is σ = 114890711040. Its totient is φ = 20414857984.

The previous prime is 51049841519. The next prime is 51049841581. The reversal of 51049841560 is 6514894015.

It is a super-2 number, since 2×51049841560² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6249 + ... + 319591.

It is an arithmetic number, because the mean of its divisors is an integer number (3590334720).

Almost surely, 2^51049841560 is an apocalyptic number.

It is an amenable number.

51049841560 is an abundant number, since it is smaller than the sum of its proper divisors (63840869480).

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

51049841560 is a wasteful number, since it uses less digits than its factorization.

51049841560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317427 (or 317423 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 43.

The spelling of 51049841560 in words is "fifty-one billion, forty-nine million, eight hundred forty-one thousand, five hundred sixty".