55110550 has 48 divisors (see below), whose sum is σ = 113086512. Its totient is φ = 19814400.

The previous prime is 55110533. The next prime is 55110557. The reversal of 55110550 is 5501155.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55110557) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52834 + ... + 53866.

It is an arithmetic number, because the mean of its divisors is an integer number (2355969).

Almost surely, 2^55110550 is an apocalyptic number.

55110550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55110550 is an abundant number, since it is smaller than the sum of its proper divisors (57975962).

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

55110550 is a wasteful number, since it uses less digits than its factorization.

55110550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153 (or 1148 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 22.

The square root of 55110550 is about 7423.6480250615. The cubic root of 55110550 is about 380.5498733669.

It can be divided in two parts, 551105 and 50, that added together give a palindrome (551155).

The spelling of 55110550 in words is "fifty-five million, one hundred ten thousand, five hundred fifty".