2522721544 has 16 divisors (see below), whose sum is σ = 5405832000. Its totient is φ = 1081166352.

The previous prime is 2522721529. The next prime is 2522721547. The reversal of 2522721544 is 4451272252.

It is not an unprimeable number, because it can be changed into a prime (2522721547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22524244 + ... + 22524355.

It is an arithmetic number, because the mean of its divisors is an integer number (337864500).

Almost surely, 2^2522721544 is an apocalyptic number.

It is an amenable number.

2522721544 is an abundant number, since it is smaller than the sum of its proper divisors (2883110456).

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

2522721544 is a wasteful number, since it uses less digits than its factorization.

2522721544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45048612 (or 45048608 counting only the distinct ones).

The product of its digits is 44800, while the sum is 34.

The square root of 2522721544 is about 50226.7015042796. The cubic root of 2522721544 is about 1361.3081314938.

Adding to 2522721544 its reverse (4451272252), we get a palindrome (6973993796).

The spelling of 2522721544 in words is "two billion, five hundred twenty-two million, seven hundred twenty-one thousand, five hundred forty-four".