55520124 has 36 divisors (see below), whose sum is σ = 142398312. Its totient is φ = 16823840.

The previous prime is 55520107. The next prime is 55520149. The reversal of 55520124 is 42102555.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 55520094 and 55520103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17667 + ... + 20570.

Almost surely, 2^55520124 is an apocalyptic number.

It is an amenable number.

55520124 is an abundant number, since it is smaller than the sum of its proper divisors (86878188).

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

55520124 is a wasteful number, since it uses less digits than its factorization.

55520124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38266 (or 38253 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 55520124 is about 7451.1827249102. The cubic root of 55520124 is about 381.4902789209.

Adding to 55520124 its reverse (42102555), we get a palindrome (97622679).

Subtracting from 55520124 its reverse (42102555), we obtain a square (13417569 = 3663²).

The spelling of 55520124 in words is "fifty-five million, five hundred twenty thousand, one hundred twenty-four".