25013869 has 6 divisors (see below), whose sum is σ = 25847790. Its totient is φ = 24206040.

The previous prime is 25013803. The next prime is 25013893. The reversal of 25013869 is 96831052.

It can be written as a sum of positive squares in only one way, i.e., 15015625 + 9998244 = 3875^2 + 3162^2 .

It is not a de Polignac number, because 25013869 - 2⁷ = 25013741 is a prime.

It is a super-2 number, since 2×25013869² = 1251387284698322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25013269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12054 + ... + 13975.

It is an arithmetic number, because the mean of its divisors is an integer number (4307965).

Almost surely, 2^25013869 is an apocalyptic number.

It is an amenable number.

25013869 is a deficient number, since it is larger than the sum of its proper divisors (833921).

25013869 is an equidigital number, since it uses as much as digits as its factorization.

25013869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26091 (or 26060 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 25013869 is about 5001.3867077042. The cubic root of 25013869 is about 292.4558347616.

The spelling of 25013869 in words is "twenty-five million, thirteen thousand, eight hundred sixty-nine".