2255521464 has 160 divisors (see below), whose sum is σ = 7600348800. Its totient is φ = 610493760.

The previous prime is 2255521459. The next prime is 2255521523. The reversal of 2255521464 is 4641255522.

2255521464 is a `hidden beast` number, since 22 + 55 + 521 + 4 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 73099 + ... + 99269.

It is an arithmetic number, because the mean of its divisors is an integer number (47502180).

Almost surely, 2^2255521464 is an apocalyptic number.

2255521464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2255521464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3800174400).

2255521464 is an abundant number, since it is smaller than the sum of its proper divisors (5344827336).

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

2255521464 is a wasteful number, since it uses less digits than its factorization.

2255521464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26215 (or 26202 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

The square root of 2255521464 is about 47492.3305808422. The cubic root of 2255521464 is about 1311.4416977504.

Adding to 2255521464 its reverse (4641255522), we get a palindrome (6896776986).

The spelling of 2255521464 in words is "two billion, two hundred fifty-five million, five hundred twenty-one thousand, four hundred sixty-four".