51572007405 has 24 divisors (see below), whose sum is σ = 89399325600. Its totient is φ = 27502656480.

The previous prime is 51572007353. The next prime is 51572007413. The reversal of 51572007405 is 50470027515.

51572007405 is a `hidden beast` number, since 515 + 72 + 0 + 0 + 74 + 0 + 5 = 666.

51572007405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51572007405 - 2⁶ = 51572007341 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51572007405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 545710 + ... + 633200.

It is an arithmetic number, because the mean of its divisors is an integer number (3724971900).

Almost surely, 2^51572007405 is an apocalyptic number.

It is an amenable number.

51572007405 is a deficient number, since it is larger than the sum of its proper divisors (37827318195).

51572007405 is a wasteful number, since it uses less digits than its factorization.

51572007405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100601 (or 100598 counting only the distinct ones).

The product of its (nonzero) digits is 49000, while the sum is 36.

The spelling of 51572007405 in words is "fifty-one billion, five hundred seventy-two million, seven thousand, four hundred five".