51925844715516 has 24 divisors (see below), whose sum is σ = 134622560373840. Its totient is φ = 17308614905136.

The previous prime is 51925844715421. The next prime is 51925844715517. The reversal of 51925844715516 is 61551744852915.

51925844715516 is a `hidden beast` number, since 5 + 1 + 9 + 2 + 5 + 8 + 4 + 4 + 71 + 551 + 6 = 666.

It is a super-2 number, since 2×51925844715516² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51925844715517) 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, 240397429131 + ... + 240397429346.

It is an arithmetic number, because the mean of its divisors is an integer number (5609273348910).

Almost surely, 2^{51925844715516} is an apocalyptic number.

It is an amenable number.

51925844715516 is an abundant number, since it is smaller than the sum of its proper divisors (82696715658324).

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

51925844715516 is a wasteful number, since it uses less digits than its factorization.

51925844715516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480794858490 (or 480794858482 counting only the distinct ones).

The product of its digits is 60480000, while the sum is 63.

The spelling of 51925844715516 in words is "fifty-one trillion, nine hundred twenty-five billion, eight hundred forty-four million, seven hundred fifteen thousand, five hundred sixteen".