651054125525 has 12 divisors (see below), whose sum is σ = 809340647172. Its totient is φ = 519531344640.

The previous prime is 651054125489. The next prime is 651054125537. The reversal of 651054125525 is 525521450156.

It can be written as a sum of positive squares in 6 ways, for example, as 8879481361 + 642174644164 = 94231^2 + 801358^2 .

It is not a de Polignac number, because 651054125525 - 2¹⁶ = 651054059989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32788772 + ... + 32808621.

It is an arithmetic number, because the mean of its divisors is an integer number (67445053931).

Almost surely, 2^651054125525 is an apocalyptic number.

It is an amenable number.

651054125525 is a deficient number, since it is larger than the sum of its proper divisors (158286521647).

651054125525 is a wasteful number, since it uses less digits than its factorization.

651054125525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65597800 (or 65597795 counting only the distinct ones).

The product of its (nonzero) digits is 300000, while the sum is 41.

The spelling of 651054125525 in words is "six hundred fifty-one billion, fifty-four million, one hundred twenty-five thousand, five hundred twenty-five".