25306969 has 4 divisors (see below), whose sum is σ = 26407296. Its totient is φ = 24206644.

The previous prime is 25306961. The next prime is 25306979. The reversal of 25306969 is 96960352.

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 25306969 - 2³ = 25306961 is a prime.

It is a super-2 number, since 2×25306969² = 1280885359933922, which contains 22 as substring.

It is a Duffinian number.

25306969 is a modest number, since divided by 6969 gives 2530 as remainder.

It is not an unprimeable number, because it can be changed into a prime (25306961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550129 + ... + 550174.

It is an arithmetic number, because the mean of its divisors is an integer number (6601824).

Almost surely, 2^25306969 is an apocalyptic number.

It is an amenable number.

25306969 is a deficient number, since it is larger than the sum of its proper divisors (1100327).

25306969 is a wasteful number, since it uses less digits than its factorization.

25306969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100326.

The product of its (nonzero) digits is 87480, while the sum is 40.

The square root of 25306969 is about 5030.6032441448. The cubic root of 25306969 is about 293.5936857195.

The spelling of 25306969 in words is "twenty-five million, three hundred six thousand, nine hundred sixty-nine".