51214540525 has 12 divisors (see below), whose sum is σ = 64857223872. Its totient is φ = 40099894640.

The previous prime is 51214540523. The next prime is 51214540549. The reversal of 51214540525 is 52504541215.

It is not a de Polignac number, because 51214540525 - 2¹ = 51214540523 is a prime.

It is a super-2 number, since 2×51214540525² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51214540523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21792247 + ... + 21794596.

It is an arithmetic number, because the mean of its divisors is an integer number (5404768656).

Almost surely, 2^51214540525 is an apocalyptic number.

It is an amenable number.

51214540525 is a deficient number, since it is larger than the sum of its proper divisors (13642683347).

51214540525 is a wasteful number, since it uses less digits than its factorization.

51214540525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43586900 (or 43586895 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 34.

The spelling of 51214540525 in words is "fifty-one billion, two hundred fourteen million, five hundred forty thousand, five hundred twenty-five".