51371425 has 24 divisors (see below), whose sum is σ = 73088576. Its totient is φ = 35087040.

The previous prime is 51371393. The next prime is 51371431. The reversal of 51371425 is 52417315.

It is a happy number.

It is not a de Polignac number, because 51371425 - 2⁵ = 51371393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51371393 and 51371402.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64882 + ... + 65668.

Almost surely, 2^51371425 is an apocalyptic number.

It is an amenable number.

51371425 is a deficient number, since it is larger than the sum of its proper divisors (21717151).

51371425 is a wasteful number, since it uses less digits than its factorization.

51371425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177 (or 1172 counting only the distinct ones).

The product of its digits is 4200, while the sum is 28.

The square root of 51371425 is about 7167.3862041891. The cubic root of 51371425 is about 371.7410639764.

The spelling of 51371425 in words is "fifty-one million, three hundred seventy-one thousand, four hundred twenty-five".