2561882392 has 32 divisors (see below), whose sum is σ = 4986198720. Its totient is φ = 1233123840.

The previous prime is 2561882387. The next prime is 2561882429. The reversal of 2561882392 is 2932881652.

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, 32913 + ... + 78784.

It is an arithmetic number, because the mean of its divisors is an integer number (155818710).

Almost surely, 2^2561882392 is an apocalyptic number.

It is an amenable number.

2561882392 is a deficient number, since it is larger than the sum of its proper divisors (2424316328).

2561882392 is a wasteful number, since it uses less digits than its factorization.

2561882392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111811 (or 111807 counting only the distinct ones).

The product of its digits is 414720, while the sum is 46.

The square root of 2561882392 is about 50615.0411636699. The cubic root of 2561882392 is about 1368.3159715513.

The spelling of 2561882392 in words is "two billion, five hundred sixty-one million, eight hundred eighty-two thousand, three hundred ninety-two".