55550110 has 64 divisors (see below), whose sum is σ = 131258880. Its totient is φ = 16398720.

The previous prime is 55550081. The next prime is 55550111. The reversal of 55550110 is 1105555.

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 (55550111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12732 + ... + 16528.

It is an arithmetic number, because the mean of its divisors is an integer number (2050920).

Almost surely, 2^55550110 is an apocalyptic number.

55550110 is an abundant number, since it is smaller than the sum of its proper divisors (75708770).

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

55550110 is a wasteful number, since it uses less digits than its factorization.

55550110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3841.

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

The square root of 55550110 is about 7453.1946170753. The cubic root of 55550110 is about 381.5589465671.

Adding to 55550110 its reverse (1105555), we get a palindrome (56655665).

The spelling of 55550110 in words is "fifty-five million, five hundred fifty thousand, one hundred ten".