25616495 has 4 divisors (see below), whose sum is σ = 30739800. Its totient is φ = 20493192.

The previous prime is 25616489. The next prime is 25616497. The reversal of 25616495 is 59461652.

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

It is a cyclic number.

It is not a de Polignac number, because 25616495 - 2¹⁴ = 25600111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25616497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2561645 + ... + 2561654.

It is an arithmetic number, because the mean of its divisors is an integer number (7684950).

Almost surely, 2^25616495 is an apocalyptic number.

25616495 is a deficient number, since it is larger than the sum of its proper divisors (5123305).

25616495 is an equidigital number, since it uses as much as digits as its factorization.

25616495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5123304.

The product of its digits is 64800, while the sum is 38.

The square root of 25616495 is about 5061.2740490908. The cubic root of 25616495 is about 294.7858064043.

The spelling of 25616495 in words is "twenty-five million, six hundred sixteen thousand, four hundred ninety-five".