25655469 has 12 divisors (see below), whose sum is σ = 39792384. Its totient is φ = 14660184.

The previous prime is 25655449. The next prime is 25655489. The reversal of 25655469 is 96455652.

It is an interprime number because it is at equal distance from previous prime (25655449) and next prime (25655489).

It is not a de Polignac number, because 25655469 - 2⁵ = 25655437 is a prime.

It is a super-4 number, since 4×25655469⁴ (a number of 31 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 25655469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25655449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87117 + ... + 87410.

It is an arithmetic number, because the mean of its divisors is an integer number (3316032).

Almost surely, 2^25655469 is an apocalyptic number.

It is an amenable number.

25655469 is a deficient number, since it is larger than the sum of its proper divisors (14136915).

25655469 is a wasteful number, since it uses less digits than its factorization.

25655469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174544 (or 174537 counting only the distinct ones).

The product of its digits is 324000, while the sum is 42.

The square root of 25655469 is about 5065.1228020651. The cubic root of 25655469 is about 294.9352304419.

The spelling of 25655469 in words is "twenty-five million, six hundred fifty-five thousand, four hundred sixty-nine".