25331089 has 9 divisors (see below), whose sum is σ = 29507817. Its totient is φ = 21682164.

The previous prime is 25331087. The next prime is 25331101. The reversal of 25331089 is 98013352.

It is a happy number.

The square root of 25331089 is 5033.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 25331089 - 2¹ = 25331087 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25331089.

It is not an unprimeable number, because it can be changed into a prime (25331083) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 34872 + ... + 35590.

Almost surely, 2^25331089 is an apocalyptic number.

25331089 is the 5033-rd square number.

25331089 is the 2517-th centered octagonal number.

It is an amenable number.

25331089 is a deficient number, since it is larger than the sum of its proper divisors (4176728).

25331089 is an frugal number, since it uses more digits than its factorization.

25331089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1452 (or 726 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The cubic root of 25331089 is about 293.6869305369.

The spelling of 25331089 in words is "twenty-five million, three hundred thirty-one thousand, eighty-nine".