51625415839992 has 64 divisors (see below), whose sum is σ = 129484061740800. Its totient is φ = 17152407056640.

The previous prime is 51625415839981. The next prime is 51625415840081. The reversal of 51625415839992 is 29993851452615.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191369059 + ... + 191638637.

It is an arithmetic number, because the mean of its divisors is an integer number (2023188464700).

Almost surely, 2^{51625415839992} is an apocalyptic number.

It is an amenable number.

51625415839992 is an abundant number, since it is smaller than the sum of its proper divisors (77858645900808).

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

51625415839992 is a wasteful number, since it uses less digits than its factorization.

51625415839992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295556 (or 295552 counting only the distinct ones).

The product of its digits is 209952000, while the sum is 69.

The spelling of 51625415839992 in words is "fifty-one trillion, six hundred twenty-five billion, four hundred fifteen million, eight hundred thirty-nine thousand, nine hundred ninety-two".