51425716 has 24 divisors (see below), whose sum is σ = 91780416. Its totient is φ = 25206720.

The previous prime is 51425707. The next prime is 51425719. The reversal of 51425716 is 61752415.

It is a super-2 number, since 2×51425716² = 5289208532225312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51425719) 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 7 ways as a sum of consecutive naturals, for example, 83040 + ... + 83656.

It is an arithmetic number, because the mean of its divisors is an integer number (3824184).

Almost surely, 2^51425716 is an apocalyptic number.

It is an amenable number.

51425716 is a deficient number, since it is larger than the sum of its proper divisors (40354700).

51425716 is a wasteful number, since it uses less digits than its factorization.

51425716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999 (or 997 counting only the distinct ones).

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

The square root of 51425716 is about 7171.1725679975. The cubic root of 51425716 is about 371.8719739038.

The spelling of 51425716 in words is "fifty-one million, four hundred twenty-five thousand, seven hundred sixteen".