25534369 has 16 divisors (see below), whose sum is σ = 29998080. Its totient is φ = 21283920.

The previous prime is 25534363. The next prime is 25534381. The reversal of 25534369 is 96343552.

It is not a de Polignac number, because 25534369 - 2³ = 25534361 is a prime.

It is a super-2 number, since 2×25534369² = 1304008000456322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25534361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40942 + ... + 41560.

It is an arithmetic number, because the mean of its divisors is an integer number (1874880).

Almost surely, 2^25534369 is an apocalyptic number.

It is an amenable number.

25534369 is a deficient number, since it is larger than the sum of its proper divisors (4463711).

25534369 is an equidigital number, since it uses as much as digits as its factorization.

25534369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780.

The product of its digits is 97200, while the sum is 37.

The square root of 25534369 is about 5053.1543613866. The cubic root of 25534369 is about 294.4704432352.

The spelling of 25534369 in words is "twenty-five million, five hundred thirty-four thousand, three hundred sixty-nine".