25140669 has 4 divisors (see below), whose sum is σ = 33520896. Its totient is φ = 16760444.

The previous prime is 25140641. The next prime is 25140677. The reversal of 25140669 is 96604152.

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 25140669 - 2²⁰ = 24092093 is a prime.

It is a super-2 number, since 2×25140669² = 1264106475535122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25130669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4190109 + ... + 4190114.

It is an arithmetic number, because the mean of its divisors is an integer number (8380224).

Almost surely, 2^25140669 is an apocalyptic number.

It is an amenable number.

25140669 is a deficient number, since it is larger than the sum of its proper divisors (8380227).

25140669 is an equidigital number, since it uses as much as digits as its factorization.

25140669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8380226.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 25140669 is about 5014.0471677079. The cubic root of 25140669 is about 292.9491732746.

The spelling of 25140669 in words is "twenty-five million, one hundred forty thousand, six hundred sixty-nine".