25560249 has 16 divisors (see below), whose sum is σ = 40039104. Its totient is φ = 14299200.

The previous prime is 25560247. The next prime is 25560251. The reversal of 25560249 is 94206552.

It is an interprime number because it is at equal distance from previous prime (25560247) and next prime (25560251).

It is not a de Polignac number, because 25560249 - 2¹ = 25560247 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (25560247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29362 + ... + 30219.

It is an arithmetic number, because the mean of its divisors is an integer number (2502444).

Almost surely, 2^25560249 is an apocalyptic number.

It is an amenable number.

25560249 is a deficient number, since it is larger than the sum of its proper divisors (14478855).

25560249 is a wasteful number, since it uses less digits than its factorization.

25560249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59608.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 25560249 is about 5055.7144895652. The cubic root of 25560249 is about 294.5698950999.

The spelling of 25560249 in words is "twenty-five million, five hundred sixty thousand, two hundred forty-nine".