51425671 has 16 divisors (see below), whose sum is σ = 59617440. Its totient is φ = 43908480.

The previous prime is 51425669. The next prime is 51425681. The reversal of 51425671 is 17652415.

It is not a de Polignac number, because 51425671 - 2¹ = 51425669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51425611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9625 + ... + 13981.

It is an arithmetic number, because the mean of its divisors is an integer number (3726090).

Almost surely, 2^51425671 is an apocalyptic number.

51425671 is a deficient number, since it is larger than the sum of its proper divisors (8191769).

51425671 is a wasteful number, since it uses less digits than its factorization.

51425671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4434.

The product of its digits is 8400, while the sum is 31.

The square root of 51425671 is about 7171.1694304346. The cubic root of 51425671 is about 371.8718654351.

The spelling of 51425671 in words is "fifty-one million, four hundred twenty-five thousand, six hundred seventy-one".