51132624 has 20 divisors (see below), whose sum is σ = 132092736. Its totient is φ = 17044192.

The previous prime is 51132623. The next prime is 51132643. The reversal of 51132624 is 42623115.

It is a super-2 number, since 2×51132624² = 5229090474250752, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 51132594 and 51132603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51132623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 532584 + ... + 532679.

Almost surely, 2^51132624 is an apocalyptic number.

It is an amenable number.

51132624 is an abundant number, since it is smaller than the sum of its proper divisors (80960112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51132624 is a wasteful number, since it uses less digits than its factorization.

51132624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065274 (or 1065268 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 51132624 is about 7150.7079369808. The cubic root of 51132624 is about 371.1641541015.

Adding to 51132624 its reverse (42623115), we get a palindrome (93755739).

The spelling of 51132624 in words is "fifty-one million, one hundred thirty-two thousand, six hundred twenty-four".