51295625 has 10 divisors (see below), whose sum is σ = 64099794. Its totient is φ = 41036000.

The previous prime is 51295597. The next prime is 51295639. The reversal of 51295625 is 52659215.

51295625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 38241856 + 13053769 = 6184^2 + 3613^2 .

It is not a de Polignac number, because 51295625 - 2⁶ = 51295561 is a prime.

It is a super-2 number, since 2×51295625² = 5262482288281250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 40412 + ... + 41661.

Almost surely, 2^51295625 is an apocalyptic number.

It is an amenable number.

51295625 is a deficient number, since it is larger than the sum of its proper divisors (12804169).

51295625 is an frugal number, since it uses more digits than its factorization.

51295625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82093 (or 82078 counting only the distinct ones).

The product of its digits is 27000, while the sum is 35.

The square root of 51295625 is about 7162.0964109680. The cubic root of 51295625 is about 371.5581358009.

The spelling of 51295625 in words is "fifty-one million, two hundred ninety-five thousand, six hundred twenty-five".