2523358644 has 48 divisors (see below), whose sum is σ = 5945498496. Its totient is φ = 832921600.

The previous prime is 2523358639. The next prime is 2523358687. The reversal of 2523358644 is 4468533252.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2523358596 and 2523358605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 560884 + ... + 565364.

It is an arithmetic number, because the mean of its divisors is an integer number (123864552).

Almost surely, 2^2523358644 is an apocalyptic number.

It is an amenable number.

2523358644 is an abundant number, since it is smaller than the sum of its proper divisors (3422139852).

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

2523358644 is a wasteful number, since it uses less digits than its factorization.

2523358644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4936 (or 4934 counting only the distinct ones).

The product of its digits is 691200, while the sum is 42.

The square root of 2523358644 is about 50233.0433479796. The cubic root of 2523358644 is about 1361.4227189074.

The spelling of 2523358644 in words is "two billion, five hundred twenty-three million, three hundred fifty-eight thousand, six hundred forty-four".