55100130 has 64 divisors (see below), whose sum is σ = 136304640. Its totient is φ = 14249664.

The previous prime is 55100081. The next prime is 55100153. The reversal of 55100130 is 3100155.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 158617 + ... + 158963.

It is an arithmetic number, because the mean of its divisors is an integer number (2129760).

Almost surely, 2^55100130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55100130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68152320).

55100130 is an abundant number, since it is smaller than the sum of its proper divisors (81204510).

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

55100130 is a wasteful number, since it uses less digits than its factorization.

55100130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503.

The product of its (nonzero) digits is 75, while the sum is 15.

The square root of 55100130 is about 7422.9461805943. The cubic root of 55100130 is about 380.5258877620.

Adding to 55100130 its reverse (3100155), we get a palindrome (58200285).

The spelling of 55100130 in words is "fifty-five million, one hundred thousand, one hundred thirty".