51045023125 has 10 divisors (see below), whose sum is σ = 63785861678. Its totient is φ = 40836018000.

The previous prime is 51045023063. The next prime is 51045023171. The reversal of 51045023125 is 52132054015.

It can be written as a sum of positive squares in 5 ways, for example, as 6571696356 + 44473326769 = 81066^2 + 210887^2 .

It is not a de Polignac number, because 51045023125 - 2⁷ = 51045022997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51045023093 and 51045023102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 40835394 + ... + 40836643.

Almost surely, 2^51045023125 is an apocalyptic number.

It is an amenable number.

51045023125 is a deficient number, since it is larger than the sum of its proper divisors (12740838553).

51045023125 is an frugal number, since it uses more digits than its factorization.

51045023125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81672057 (or 81672042 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 51045023125 in words is "fifty-one billion, forty-five million, twenty-three thousand, one hundred twenty-five".