2561053544 has 16 divisors (see below), whose sum is σ = 5487972000. Its totient is φ = 1097594352.

The previous prime is 2561053541. The next prime is 2561053549. The reversal of 2561053544 is 4453501652.

It is not an unprimeable number, because it can be changed into a prime (2561053541) 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, 22866494 + ... + 22866605.

It is an arithmetic number, because the mean of its divisors is an integer number (342998250).

Almost surely, 2^2561053544 is an apocalyptic number.

It is an amenable number.

2561053544 is an abundant number, since it is smaller than the sum of its proper divisors (2926918456).

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

2561053544 is a wasteful number, since it uses less digits than its factorization.

2561053544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45733112 (or 45733108 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

The square root of 2561053544 is about 50606.8527375493. The cubic root of 2561053544 is about 1368.1683914893.

The spelling of 2561053544 in words is "two billion, five hundred sixty-one million, fifty-three thousand, five hundred forty-four".