2564254544 has 40 divisors (see below), whose sum is σ = 5193090240. Its totient is φ = 1224292608.

The previous prime is 2564254507. The next prime is 2564254571. The reversal of 2564254544 is 4454524652.

2564254544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222164 + ... + 233420.

It is an arithmetic number, because the mean of its divisors is an integer number (129827256).

Almost surely, 2^2564254544 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 2564254544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2596545120).

2564254544 is an abundant number, since it is smaller than the sum of its proper divisors (2628835696).

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

2564254544 is a wasteful number, since it uses less digits than its factorization.

2564254544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11907 (or 11901 counting only the distinct ones).

The product of its digits is 768000, while the sum is 41.

The square root of 2564254544 is about 50638.4690131919. The cubic root of 2564254544 is about 1368.7381678981.

The spelling of 2564254544 in words is "two billion, five hundred sixty-four million, two hundred fifty-four thousand, five hundred forty-four".