25345969 has 4 divisors (see below), whose sum is σ = 27650160. Its totient is φ = 23041780.

The previous prime is 25345967. The next prime is 25345993. The reversal of 25345969 is 96954352.

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 25345969 - 2¹ = 25345967 is a prime.

It is a super-2 number, since 2×25345969² = 1284836289097922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25345961) 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, 1152079 + ... + 1152100.

It is an arithmetic number, because the mean of its divisors is an integer number (6912540).

Almost surely, 2^25345969 is an apocalyptic number.

It is an amenable number.

25345969 is a deficient number, since it is larger than the sum of its proper divisors (2304191).

25345969 is a wasteful number, since it uses less digits than its factorization.

25345969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2304190.

The product of its digits is 291600, while the sum is 43.

The square root of 25345969 is about 5034.4780265684. The cubic root of 25345969 is about 293.7444251847.

The spelling of 25345969 in words is "twenty-five million, three hundred forty-five thousand, nine hundred sixty-nine".