25493445 has 12 divisors (see below), whose sum is σ = 44188716. Its totient is φ = 13596480.

The previous prime is 25493441. The next prime is 25493449. The reversal of 25493445 is 54439452.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (25493441) and next prime (25493449).

It can be written as a sum of positive squares in 2 ways, for example, as 8328996 + 17164449 = 2886^2 + 4143^2 .

It is not a de Polignac number, because 25493445 - 2² = 25493441 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25493441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 283216 + ... + 283305.

It is an arithmetic number, because the mean of its divisors is an integer number (3682393).

Almost surely, 2^25493445 is an apocalyptic number.

It is an amenable number.

25493445 is a deficient number, since it is larger than the sum of its proper divisors (18695271).

25493445 is a wasteful number, since it uses less digits than its factorization.

25493445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566532 (or 566529 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 25493445 is about 5049.1033857508. The cubic root of 25493445 is about 294.3130429333.

The spelling of 25493445 in words is "twenty-five million, four hundred ninety-three thousand, four hundred forty-five".