51710520156 has 24 divisors (see below), whose sum is σ = 127008295680. Its totient is φ = 16329637872.

The previous prime is 51710520149. The next prime is 51710520227. The reversal of 51710520156 is 65102501715.

It is a happy number.

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, 113400036 + ... + 113400491.

It is an arithmetic number, because the mean of its divisors is an integer number (5292012320).

Almost surely, 2^51710520156 is an apocalyptic number.

It is an amenable number.

51710520156 is an abundant number, since it is smaller than the sum of its proper divisors (75297775524).

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

51710520156 is a wasteful number, since it uses less digits than its factorization.

51710520156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226800553 (or 226800551 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 33.

The spelling of 51710520156 in words is "fifty-one billion, seven hundred ten million, five hundred twenty thousand, one hundred fifty-six".