51624937 has 36 divisors (see below), whose sum is σ = 68316096. Its totient is φ = 38188800.

The previous prime is 51624931. The next prime is 51624961. The reversal of 51624937 is 73942615.

It is not a de Polignac number, because 51624937 - 2³ = 51624929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51624896 and 51624905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51624931) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 341812 + ... + 341962.

Almost surely, 2^51624937 is an apocalyptic number.

It is an amenable number.

51624937 is a deficient number, since it is larger than the sum of its proper divisors (16691159).

51624937 is a wasteful number, since it uses less digits than its factorization.

51624937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218 (or 188 counting only the distinct ones).

The product of its digits is 45360, while the sum is 37.

The square root of 51624937 is about 7185.0495474979. The cubic root of 51624937 is about 372.3515604521.

The spelling of 51624937 in words is "fifty-one million, six hundred twenty-four thousand, nine hundred thirty-seven".