2523643656 has 32 divisors (see below), whose sum is σ = 6312012000. Its totient is φ = 840827520.

The previous prime is 2523643649. The next prime is 2523643673. The reversal of 2523643656 is 6563463252.

It is a super-3 number, since 3×2523643656³ (a number of 29 digits) contains 333 as substring.

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 7 ways as a sum of consecutive naturals, for example, 31695 + ... + 77793.

It is an arithmetic number, because the mean of its divisors is an integer number (197250375).

Almost surely, 2^2523643656 is an apocalyptic number.

It is an amenable number.

2523643656 is an abundant number, since it is smaller than the sum of its proper divisors (3788368344).

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

2523643656 is a wasteful number, since it uses less digits than its factorization.

2523643656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48389 (or 48385 counting only the distinct ones).

The product of its digits is 777600, while the sum is 42.

The square root of 2523643656 is about 50235.8801654754. The cubic root of 2523643656 is about 1361.4739742987.

The spelling of 2523643656 in words is "two billion, five hundred twenty-three million, six hundred forty-three thousand, six hundred fifty-six".