55120524 has 12 divisors (see below), whose sum is σ = 128614584. Its totient is φ = 18373504.

The previous prime is 55120469. The next prime is 55120531. The reversal of 55120524 is 42502155.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 55120494 and 55120503.

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, 2296677 + ... + 2296700.

It is an arithmetic number, because the mean of its divisors is an integer number (10717882).

Almost surely, 2^55120524 is an apocalyptic number.

It is an amenable number.

55120524 is an abundant number, since it is smaller than the sum of its proper divisors (73494060).

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

55120524 is a wasteful number, since it uses less digits than its factorization.

55120524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4593384 (or 4593382 counting only the distinct ones).

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

The square root of 55120524 is about 7424.3197668204. The cubic root of 55120524 is about 380.5728295007.

Adding to 55120524 its reverse (42502155), we get a palindrome (97622679).

The spelling of 55120524 in words is "fifty-five million, one hundred twenty thousand, five hundred twenty-four".