51156325 has 12 divisors (see below), whose sum is σ = 69200928. Its totient is φ = 37204400.

The previous prime is 51156299. The next prime is 51156337. The reversal of 51156325 is 52365115.

It is not a de Polignac number, because 51156325 - 2⁹ = 51155813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51156293 and 51156302.

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, 92737 + ... + 93286.

It is an arithmetic number, because the mean of its divisors is an integer number (5766744).

Almost surely, 2^51156325 is an apocalyptic number.

51156325 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51156325 is a deficient number, since it is larger than the sum of its proper divisors (18044603).

51156325 is a wasteful number, since it uses less digits than its factorization.

51156325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186044 (or 186039 counting only the distinct ones).

The product of its digits is 4500, while the sum is 28.

The square root of 51156325 is about 7152.3649934829. The cubic root of 51156325 is about 371.2214925943.

The spelling of 51156325 in words is "fifty-one million, one hundred fifty-six thousand, three hundred twenty-five".