25622641 has 4 divisors (see below), whose sum is σ = 27951984. Its totient is φ = 23293300.

The previous prime is 25622633. The next prime is 25622657. The reversal of 25622641 is 14622652.

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 25622641 - 2³ = 25622633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25622671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1164655 + ... + 1164676.

It is an arithmetic number, because the mean of its divisors is an integer number (6987996).

Almost surely, 2^25622641 is an apocalyptic number.

It is an amenable number.

25622641 is a deficient number, since it is larger than the sum of its proper divisors (2329343).

25622641 is a wasteful number, since it uses less digits than its factorization.

25622641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2329342.

The product of its digits is 5760, while the sum is 28.

The square root of 25622641 is about 5061.8811720545. The cubic root of 25622641 is about 294.8093798699.

The spelling of 25622641 in words is "twenty-five million, six hundred twenty-two thousand, six hundred forty-one".