51125423645156 has 24 divisors (see below), whose sum is σ = 102735448474176. Its totient is φ = 21807052737120.

The previous prime is 51125423645119. The next prime is 51125423645159. The reversal of 51125423645156 is 65154632452115.

It is a super-2 number, since 2×51125423645156² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51125423645159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4326790271 + ... + 4326802086.

It is an arithmetic number, because the mean of its divisors is an integer number (4280643686424).

Almost surely, 2^{51125423645156} is an apocalyptic number.

It is an amenable number.

51125423645156 is an abundant number, since it is smaller than the sum of its proper divisors (51610024829020).

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

51125423645156 is a wasteful number, since it uses less digits than its factorization.

51125423645156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8653592579 (or 8653592577 counting only the distinct ones).

The product of its digits is 4320000, while the sum is 50.

The spelling of 51125423645156 in words is "fifty-one trillion, one hundred twenty-five billion, four hundred twenty-three million, six hundred forty-five thousand, one hundred fifty-six".