51404702604725 has 6 divisors (see below), whose sum is σ = 63741831229890. Its totient is φ = 41123762083760.

The previous prime is 51404702604713. The next prime is 51404702604757. The reversal of 51404702604725 is 52740620740415.

It can be written as a sum of positive squares in 3 ways, for example, as 260435688241 + 51144266916484 = 510329^2 + 7151522^2 .

It is not a de Polignac number, because 51404702604725 - 2⁴ = 51404702604709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51404702604725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1028094052070 + ... + 1028094052119.

It is an arithmetic number, because the mean of its divisors is an integer number (10623638538315).

Almost surely, 2^{51404702604725} is an apocalyptic number.

It is an amenable number.

51404702604725 is a deficient number, since it is larger than the sum of its proper divisors (12337128625165).

51404702604725 is a wasteful number, since it uses less digits than its factorization.

51404702604725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2056188104199 (or 2056188104194 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 47.

The spelling of 51404702604725 in words is "fifty-one trillion, four hundred four billion, seven hundred two million, six hundred four thousand, seven hundred twenty-five".