25623349 has 4 divisors (see below), whose sum is σ = 25642240. Its totient is φ = 25604460.

The previous prime is 25623337. The next prime is 25623359. The reversal of 25623349 is 94332652.

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 25623349 - 2⁹ = 25622837 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 (25623359) 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, 7239 + ... + 10180.

It is an arithmetic number, because the mean of its divisors is an integer number (6410560).

Almost surely, 2^25623349 is an apocalyptic number.

It is an amenable number.

25623349 is a deficient number, since it is larger than the sum of its proper divisors (18891).

25623349 is a wasteful number, since it uses less digits than its factorization.

25623349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18890.

The product of its digits is 38880, while the sum is 34.

The square root of 25623349 is about 5061.9511060460. The cubic root of 25623349 is about 294.8120952174.

The spelling of 25623349 in words is "twenty-five million, six hundred twenty-three thousand, three hundred forty-nine".