25863901 has 4 divisors (see below), whose sum is σ = 29558752. Its totient is φ = 22169052.

The previous prime is 25863899. The next prime is 25863913. The reversal of 25863901 is 10936852.

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 25863901 - 2¹ = 25863899 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25863701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1847415 + ... + 1847428.

It is an arithmetic number, because the mean of its divisors is an integer number (7389688).

Almost surely, 2^25863901 is an apocalyptic number.

It is an amenable number.

25863901 is a deficient number, since it is larger than the sum of its proper divisors (3694851).

25863901 is an equidigital number, since it uses as much as digits as its factorization.

25863901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3694850.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 25863901 is about 5085.6563981457. The cubic root of 25863901 is about 295.7317884818.

The spelling of 25863901 in words is "twenty-five million, eight hundred sixty-three thousand, nine hundred one".