25523361 has 18 divisors (see below), whose sum is σ = 37910418. Its totient is φ = 16537440.

The previous prime is 25523359. The next prime is 25523363. The reversal of 25523361 is 16332552.

It is an interprime number because it is at equal distance from previous prime (25523359) and next prime (25523363).

It can be written as a sum of positive squares in only one way, i.e., 15563025 + 9960336 = 3945^2 + 3156^2 .

It is not a de Polignac number, because 25523361 - 2¹ = 25523359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25523363) 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 17 ways as a sum of consecutive naturals, for example, 96916 + ... + 97178.

Almost surely, 2^25523361 is an apocalyptic number.

It is an amenable number.

25523361 is a deficient number, since it is larger than the sum of its proper divisors (12387057).

25523361 is an equidigital number, since it uses as much as digits as its factorization.

25523361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573 (or 307 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 25523361 is about 5052.0650233345. The cubic root of 25523361 is about 294.4281212369.

The spelling of 25523361 in words is "twenty-five million, five hundred twenty-three thousand, three hundred sixty-one".