2561572675 has 24 divisors (see below), whose sum is σ = 3326974560. Its totient is φ = 1952755200.

The previous prime is 2561572667. The next prime is 2561572681. The reversal of 2561572675 is 5762751652.

It is not a de Polignac number, because 2561572675 - 2³ = 2561572667 is a prime.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 146395 + ... + 162955.

It is an arithmetic number, because the mean of its divisors is an integer number (138623940).

Almost surely, 2^2561572675 is an apocalyptic number.

2561572675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2561572675 is a deficient number, since it is larger than the sum of its proper divisors (765401885).

2561572675 is a wasteful number, since it uses less digits than its factorization.

2561572675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16863 (or 16858 counting only the distinct ones).

The product of its digits is 882000, while the sum is 46.

The square root of 2561572675 is about 50611.9815359960. The cubic root of 2561572675 is about 1368.2608287914.

The spelling of 2561572675 in words is "two billion, five hundred sixty-one million, five hundred seventy-two thousand, six hundred seventy-five".