2561112375 has 32 divisors (see below), whose sum is σ = 4342133952. Its totient is φ = 1340144000.

The previous prime is 2561112371. The next prime is 2561112377. The reversal of 2561112375 is 5732111652.

It is not a de Polignac number, because 2561112375 - 2² = 2561112371 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2561112371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44556 + ... + 84305.

It is an arithmetic number, because the mean of its divisors is an integer number (135691686).

Almost surely, 2^2561112375 is an apocalyptic number.

2561112375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2561112375 is a deficient number, since it is larger than the sum of its proper divisors (1781021577).

2561112375 is a wasteful number, since it uses less digits than its factorization.

2561112375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128932 (or 128922 counting only the distinct ones).

The product of its digits is 12600, while the sum is 33.

The square root of 2561112375 is about 50607.4339894842. The cubic root of 2561112375 is about 1368.1788676595.

The spelling of 2561112375 in words is "two billion, five hundred sixty-one million, one hundred twelve thousand, three hundred seventy-five".