51624873 has 12 divisors (see below), whose sum is σ = 75140208. Its totient is φ = 34153080.

The previous prime is 51624829. The next prime is 51624883. The reversal of 51624873 is 37842615.

It is not a de Polignac number, because 51624873 - 2²¹ = 49527721 is a prime.

It is a super-2 number, since 2×51624873² = 5330255024532258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51624883) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20715 + ... + 23072.

It is an arithmetic number, because the mean of its divisors is an integer number (6261684).

Almost surely, 2^51624873 is an apocalyptic number.

It is an amenable number.

51624873 is a deficient number, since it is larger than the sum of its proper divisors (23515335).

51624873 is a wasteful number, since it uses less digits than its factorization.

51624873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43924 (or 43921 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 51624873 is about 7185.0450938042. The cubic root of 51624873 is about 372.3514065826.

The spelling of 51624873 in words is "fifty-one million, six hundred twenty-four thousand, eight hundred seventy-three".