51025924447965 has 12 divisors (see below), whose sum is σ = 88444935709884. Its totient is φ = 27213826372224.

The previous prime is 51025924447943. The next prime is 51025924447991. The reversal of 51025924447965 is 56974442952015.

It is a happy number.

51025924447965 is a `hidden beast` number, since 5 + 10 + 2 + 5 + 92 + 4 + 4 + 479 + 65 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 13497533862201 + 37528390585764 = 3673899^2 + 6126042^2 .

It is not a de Polignac number, because 51025924447965 - 2⁷ = 51025924447837 is a prime.

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, 566954716044 + ... + 566954716133.

It is an arithmetic number, because the mean of its divisors is an integer number (7370411309157).

Almost surely, 2^{51025924447965} is an apocalyptic number.

It is an amenable number.

51025924447965 is a deficient number, since it is larger than the sum of its proper divisors (37419011261919).

51025924447965 is a wasteful number, since it uses less digits than its factorization.

51025924447965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133909432188 (or 1133909432185 counting only the distinct ones).

The product of its (nonzero) digits is 108864000, while the sum is 63.

The spelling of 51025924447965 in words is "fifty-one trillion, twenty-five billion, nine hundred twenty-four million, four hundred forty-seven thousand, nine hundred sixty-five".