51113624 has 16 divisors (see below), whose sum is σ = 97647120. Its totient is φ = 25074400.

The previous prime is 51113609. The next prime is 51113633. The reversal of 51113624 is 42631115.

It is a super-2 number, since 2×51113624² = 5225205116826752, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51113624.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59852 + ... + 60699.

It is an arithmetic number, because the mean of its divisors is an integer number (6102945).

Almost surely, 2^51113624 is an apocalyptic number.

It is an amenable number.

51113624 is a deficient number, since it is larger than the sum of its proper divisors (46533496).

51113624 is a wasteful number, since it uses less digits than its factorization.

51113624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120610 (or 120606 counting only the distinct ones).

The product of its digits is 720, while the sum is 23.

The square root of 51113624 is about 7149.3792737552. The cubic root of 51113624 is about 371.1181756762.

Adding to 51113624 its reverse (42631115), we get a palindrome (93744739).

The spelling of 51113624 in words is "fifty-one million, one hundred thirteen thousand, six hundred twenty-four".