55631124 has 60 divisors (see below), whose sum is σ = 146930784. Its totient is φ = 18352656.

The previous prime is 55631111. The next prime is 55631153. The reversal of 55631124 is 42113655.

55631124 is a `hidden beast` number, since 5 + 5 + 631 + 1 + 24 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 32539 + ... + 34205.

Almost surely, 2^55631124 is an apocalyptic number.

55631124 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55631124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73465392).

55631124 is an abundant number, since it is smaller than the sum of its proper divisors (91299660).

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

55631124 is a wasteful number, since it uses less digits than its factorization.

55631124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1786 (or 1775 counting only the distinct ones).

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

The square root of 55631124 is about 7458.6274876816. The cubic root of 55631124 is about 381.7443443490.

Adding to 55631124 its reverse (42113655), we get a palindrome (97744779).

It can be divided in two parts, 55631 and 124, that added together give a palindrome (55755).

The spelling of 55631124 in words is "fifty-five million, six hundred thirty-one thousand, one hundred twenty-four".