25652289 has 16 divisors (see below), whose sum is σ = 37122624. Its totient is φ = 15662400.

The previous prime is 25652251. The next prime is 25652293. The reversal of 25652289 is 98225652.

It is not a de Polignac number, because 25652289 - 2⁹ = 25651777 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (25652239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2599 + ... + 7619.

It is an arithmetic number, because the mean of its divisors is an integer number (2320164).

Almost surely, 2^25652289 is an apocalyptic number.

It is an amenable number.

25652289 is a deficient number, since it is larger than the sum of its proper divisors (11470335).

25652289 is a wasteful number, since it uses less digits than its factorization.

25652289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5168.

The product of its digits is 86400, while the sum is 39.

The square root of 25652289 is about 5064.8088808957. The cubic root of 25652289 is about 294.9230441801.

The spelling of 25652289 in words is "twenty-five million, six hundred fifty-two thousand, two hundred eighty-nine".