25611485 has 4 divisors (see below), whose sum is σ = 30733788. Its totient is φ = 20489184.

The previous prime is 25611473. The next prime is 25611491. The reversal of 25611485 is 58411652.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18757561 + 6853924 = 4331^2 + 2618^2 .

It is a cyclic number.

It is not a de Polignac number, because 25611485 - 2²² = 21417181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2561144 + ... + 2561153.

It is an arithmetic number, because the mean of its divisors is an integer number (7683447).

Almost surely, 2^25611485 is an apocalyptic number.

It is an amenable number.

25611485 is a deficient number, since it is larger than the sum of its proper divisors (5122303).

25611485 is an equidigital number, since it uses as much as digits as its factorization.

25611485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5122302.

The product of its digits is 9600, while the sum is 32.

The square root of 25611485 is about 5060.7790902192. The cubic root of 25611485 is about 294.7665873662.

The spelling of 25611485 in words is "twenty-five million, six hundred eleven thousand, four hundred eighty-five".