25344661 has 4 divisors (see below), whose sum is σ = 25395552. Its totient is φ = 25293772.

The previous prime is 25344659. The next prime is 25344691. The reversal of 25344661 is 16644352.

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 25344661 - 2¹ = 25344659 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25344611) 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, 24691 + ... + 25696.

It is an arithmetic number, because the mean of its divisors is an integer number (6348888).

Almost surely, 2^25344661 is an apocalyptic number.

It is an amenable number.

25344661 is a deficient number, since it is larger than the sum of its proper divisors (50891).

25344661 is an equidigital number, since it uses as much as digits as its factorization.

25344661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50890.

The product of its digits is 17280, while the sum is 31.

The square root of 25344661 is about 5034.3481206607. The cubic root of 25344661 is about 293.7393721219.

The spelling of 25344661 in words is "twenty-five million, three hundred forty-four thousand, six hundred sixty-one".