2563521792 has 108 divisors (see below), whose sum is σ = 7388275104. Its totient is φ = 788736000.

The previous prime is 2563521769. The next prime is 2563521809. The reversal of 2563521792 is 2971253652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 119917 + ... + 139667.

Almost surely, 2^2563521792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2563521792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3694137552).

2563521792 is an abundant number, since it is smaller than the sum of its proper divisors (4824753312).

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

2563521792 is a wasteful number, since it uses less digits than its factorization.

2563521792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19796 (or 19769 counting only the distinct ones).

The product of its digits is 226800, while the sum is 42.

The square root of 2563521792 is about 50631.2333643967. The cubic root of 2563521792 is about 1368.6077802733.

The spelling of 2563521792 in words is "two billion, five hundred sixty-three million, five hundred twenty-one thousand, seven hundred ninety-two".