51276919725 has 24 divisors (see below), whose sum is σ = 94197601920. Its totient is φ = 27347690160.

The previous prime is 51276919721. The next prime is 51276919753. The reversal of 51276919725 is 52791967215.

It is a happy number.

It is not a de Polignac number, because 51276919725 - 2² = 51276919721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51276919721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37982229 + ... + 37983578.

It is an arithmetic number, because the mean of its divisors is an integer number (3924900080).

Almost surely, 2^51276919725 is an apocalyptic number.

It is an amenable number.

51276919725 is a deficient number, since it is larger than the sum of its proper divisors (42920682195).

51276919725 is a wasteful number, since it uses less digits than its factorization.

51276919725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75965826 (or 75965815 counting only the distinct ones).

The product of its digits is 2381400, while the sum is 54.

The spelling of 51276919725 in words is "fifty-one billion, two hundred seventy-six million, nine hundred nineteen thousand, seven hundred twenty-five".