55124631 has 20 divisors (see below), whose sum is σ = 82554912. Its totient is φ = 36656928.

The previous prime is 55124627. The next prime is 55124639. The reversal of 55124631 is 13642155.

55124631 is a `hidden beast` number, since 5 + 5 + 1 + 24 + 631 = 666.

It is not a de Polignac number, because 55124631 - 2² = 55124627 is a prime.

It is a super-2 number, since 2×55124631² = 6077449885772322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 55124595 and 55124604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55124639) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 49426 + ... + 50528.

Almost surely, 2^55124631 is an apocalyptic number.

55124631 is a deficient number, since it is larger than the sum of its proper divisors (27430281).

55124631 is a wasteful number, since it uses less digits than its factorization.

55124631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1732 (or 1723 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 55124631 is about 7424.5963526646. The cubic root of 55124631 is about 380.5822813568.

Adding to 55124631 its reverse (13642155), we get a palindrome (68766786).

It can be divided in two parts, 55124 and 631, that added together give a palindrome (55755).

The spelling of 55124631 in words is "fifty-five million, one hundred twenty-four thousand, six hundred thirty-one".