55110660 has 72 divisors (see below), whose sum is σ = 169635648. Its totient is φ = 13358400.

The previous prime is 55110641. The next prime is 55110667. The reversal of 55110660 is 6601155.

It is a self number, because there is not a number n which added to its sum of digits gives 55110660.

It is not an unprimeable number, because it can be changed into a prime (55110667) 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, 3465 + ... + 11055.

Almost surely, 2^55110660 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 55110660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84817824).

55110660 is an abundant number, since it is smaller than the sum of its proper divisors (114524988).

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

55110660 is a wasteful number, since it uses less digits than its factorization.

55110660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7625 (or 7612 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 55110660 is about 7423.6554338143. The cubic root of 55110660 is about 380.5501265577.

It can be divided in two parts, 551 and 10660, that added together give a palindrome (11211).

The spelling of 55110660 in words is "fifty-five million, one hundred ten thousand, six hundred sixty".