25561675 has 6 divisors (see below), whose sum is σ = 31696508. Its totient is φ = 20449320.

The previous prime is 25561661. The next prime is 25561681. The reversal of 25561675 is 57616552.

It is not a de Polignac number, because 25561675 - 2⁵ = 25561643 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 511209 + ... + 511258.

Almost surely, 2^25561675 is an apocalyptic number.

25561675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25561675 is a deficient number, since it is larger than the sum of its proper divisors (6134833).

25561675 is a wasteful number, since it uses less digits than its factorization.

25561675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022477 (or 1022472 counting only the distinct ones).

The product of its digits is 63000, while the sum is 37.

The square root of 25561675 is about 5055.8555161318. The cubic root of 25561675 is about 294.5753729920.

The spelling of 25561675 in words is "twenty-five million, five hundred sixty-one thousand, six hundred seventy-five".