25523349 has 4 divisors (see below), whose sum is σ = 34031136. Its totient is φ = 17015564.

The previous prime is 25523299. The next prime is 25523357. The reversal of 25523349 is 94332552.

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 25523349 - 2⁷ = 25523221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25523359) 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, 4253889 + ... + 4253894.

It is an arithmetic number, because the mean of its divisors is an integer number (8507784).

Almost surely, 2^25523349 is an apocalyptic number.

It is an amenable number.

25523349 is a deficient number, since it is larger than the sum of its proper divisors (8507787).

25523349 is an equidigital number, since it uses as much as digits as its factorization.

25523349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8507786.

The product of its digits is 32400, while the sum is 33.

The square root of 25523349 is about 5052.0638357012. The cubic root of 25523349 is about 294.4280750944.

The spelling of 25523349 in words is "twenty-five million, five hundred twenty-three thousand, three hundred forty-nine".