8820440055 has 128 divisors (see below), whose sum is σ = 19026524160. Its totient is φ = 3784734720.

The previous prime is 8820440029. The next prime is 8820440081. The reversal of 8820440055 is 5500440288.

It is an interprime number because it is at equal distance from previous prime (8820440029) and next prime (8820440081).

It is not a de Polignac number, because 8820440055 - 2¹² = 8820435959 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 10875600 + ... + 10876410.

It is an arithmetic number, because the mean of its divisors is an integer number (148644720).

Almost surely, 2^8820440055 is an apocalyptic number.

8820440055 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

8820440055 is an abundant number, since it is smaller than the sum of its proper divisors (10206084105).

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

8820440055 is a wasteful number, since it uses less digits than its factorization.

8820440055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526 (or 1520 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

The square root of 8820440055 is about 93917.1978659926. The cubic root of 8820440055 is about 2066.1574693166.

The spelling of 8820440055 in words is "eight billion, eight hundred twenty million, four hundred forty thousand, fifty-five".