25346289 has 4 divisors (see below), whose sum is σ = 33795056. Its totient is φ = 16897524.

The previous prime is 25346263. The next prime is 25346297. The reversal of 25346289 is 98264352.

It is a happy number.

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 not a de Polignac number, because 25346289 - 2¹² = 25342193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25346089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4224379 + ... + 4224384.

It is an arithmetic number, because the mean of its divisors is an integer number (8448764).

Almost surely, 2^25346289 is an apocalyptic number.

It is an amenable number.

25346289 is a deficient number, since it is larger than the sum of its proper divisors (8448767).

25346289 is an equidigital number, since it uses as much as digits as its factorization.

25346289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8448766.

The product of its digits is 103680, while the sum is 39.

The square root of 25346289 is about 5034.5098073199. The cubic root of 25346289 is about 293.7456613815.

The spelling of 25346289 in words is "twenty-five million, three hundred forty-six thousand, two hundred eighty-nine".