25669755 has 48 divisors (see below), whose sum is σ = 46500480. Its totient is φ = 13089024.

The previous prime is 25669747. The next prime is 25669757. The reversal of 25669755 is 55796652.

It is not a de Polignac number, because 25669755 - 2³ = 25669747 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 25669755.

It is not an unprimeable number, because it can be changed into a prime (25669757) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 111981 + ... + 112209.

It is an arithmetic number, because the mean of its divisors is an integer number (968760).

Almost surely, 2^25669755 is an apocalyptic number.

25669755 is a deficient number, since it is larger than the sum of its proper divisors (20830725).

25669755 is a wasteful number, since it uses less digits than its factorization.

25669755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340 (or 337 counting only the distinct ones).

The product of its digits is 567000, while the sum is 45.

The square root of 25669755 is about 5066.5328381448. The cubic root of 25669755 is about 294.9899642282.

It can be divided in two parts, 2566 and 9755, that added together give a palindrome (12321).

The spelling of 25669755 in words is "twenty-five million, six hundred sixty-nine thousand, seven hundred fifty-five".