25264641 has 4 divisors (see below), whose sum is σ = 33686192. Its totient is φ = 16843092.

The previous prime is 25264627. The next prime is 25264663. The reversal of 25264641 is 14646252.

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 not a de Polignac number, because 25264641 - 2⁷ = 25264513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25264599 and 25264608.

It is not an unprimeable number, because it can be changed into a prime (25264691) 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, 4210771 + ... + 4210776.

It is an arithmetic number, because the mean of its divisors is an integer number (8421548).

Almost surely, 2^25264641 is an apocalyptic number.

It is an amenable number.

25264641 is a deficient number, since it is larger than the sum of its proper divisors (8421551).

25264641 is an equidigital number, since it uses as much as digits as its factorization.

25264641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8421550.

The product of its digits is 11520, while the sum is 30.

The square root of 25264641 is about 5026.3944333886. The cubic root of 25264641 is about 293.4299077960.

The spelling of 25264641 in words is "twenty-five million, two hundred sixty-four thousand, six hundred forty-one".