51310425 has 48 divisors (see below), whose sum is σ = 90708480. Its totient is φ = 25536000.

The previous prime is 51310411. The next prime is 51310433. The reversal of 51310425 is 52401315.

It is not a de Polignac number, because 51310425 - 2⁶ = 51310361 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67045 + ... + 67805.

It is an arithmetic number, because the mean of its divisors is an integer number (1889760).

Almost surely, 2^51310425 is an apocalyptic number.

It is an amenable number.

51310425 is a deficient number, since it is larger than the sum of its proper divisors (39398055).

51310425 is a wasteful number, since it uses less digits than its factorization.

51310425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834 (or 829 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 51310425 is about 7163.1295534843. The cubic root of 51310425 is about 371.5938667989.

The spelling of 51310425 in words is "fifty-one million, three hundred ten thousand, four hundred twenty-five".