55010520 has 96 divisors (see below), whose sum is σ = 183193920. Its totient is φ = 14307840.

The previous prime is 55010507. The next prime is 55010531. The reversal of 55010520 is 2501055.

55010520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 55010493 and 55010502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12897 + ... + 16623.

It is an arithmetic number, because the mean of its divisors is an integer number (1908270).

Almost surely, 2^55010520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55010520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91596960).

55010520 is an abundant number, since it is smaller than the sum of its proper divisors (128183400).

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

55010520 is a wasteful number, since it uses less digits than its factorization.

55010520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3785 (or 3778 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 18.

The square root of 55010520 is about 7416.9077114388. The cubic root of 55010520 is about 380.3194912334.

Adding to 55010520 its reverse (2501055), we get a palindrome (57511575).

The spelling of 55010520 in words is "fifty-five million, ten thousand, five hundred twenty".