51879425 has 12 divisors (see below), whose sum is σ = 69279420. Its totient is φ = 38310720.

The previous prime is 51879419. The next prime is 51879433. The reversal of 51879425 is 52497815.

It can be written as a sum of positive squares in 6 ways, for example, as 53824 + 51825601 = 232^2 + 7199^2 .

It is not a de Polignac number, because 51879425 - 2⁶ = 51879361 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

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, 79490 + ... + 80139.

It is an arithmetic number, because the mean of its divisors is an integer number (5773285).

Almost surely, 2^51879425 is an apocalyptic number.

It is an amenable number.

51879425 is a deficient number, since it is larger than the sum of its proper divisors (17399995).

51879425 is a wasteful number, since it uses less digits than its factorization.

51879425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159652 (or 159647 counting only the distinct ones).

The product of its digits is 100800, while the sum is 41.

The square root of 51879425 is about 7202.7373268779. The cubic root of 51879425 is about 372.9624004056.

The spelling of 51879425 in words is "fifty-one million, eight hundred seventy-nine thousand, four hundred twenty-five".