25088861 has 4 divisors (see below), whose sum is σ = 28672992. Its totient is φ = 21504732.

The previous prime is 25088851. The next prime is 25088863. The reversal of 25088861 is 16888052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25088861 - 2¹⁸ = 24826717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25088863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1792055 + ... + 1792068.

It is an arithmetic number, because the mean of its divisors is an integer number (7168248).

Almost surely, 2^25088861 is an apocalyptic number.

It is an amenable number.

25088861 is a deficient number, since it is larger than the sum of its proper divisors (3584131).

25088861 is an equidigital number, since it uses as much as digits as its factorization.

25088861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3584130.

The product of its (nonzero) digits is 30720, while the sum is 38.

The square root of 25088861 is about 5008.8782177250. The cubic root of 25088861 is about 292.7478056817.

The spelling of 25088861 in words is "twenty-five million, eighty-eight thousand, eight hundred sixty-one".