25897453 has 4 divisors (see below), whose sum is σ = 26126748. Its totient is φ = 25668160.

The previous prime is 25897451. The next prime is 25897483. The reversal of 25897453 is 35479852.

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 9753129 + 16144324 = 3123^2 + 4018^2 .

It is a cyclic number.

It is not a de Polignac number, because 25897453 - 2¹ = 25897451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25897451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114478 + ... + 114703.

It is an arithmetic number, because the mean of its divisors is an integer number (6531687).

Almost surely, 2^25897453 is an apocalyptic number.

It is an amenable number.

25897453 is a deficient number, since it is larger than the sum of its proper divisors (229295).

25897453 is a wasteful number, since it uses less digits than its factorization.

25897453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229294.

The product of its digits is 302400, while the sum is 43.

The square root of 25897453 is about 5088.9540182635. The cubic root of 25897453 is about 295.8596127859.

The spelling of 25897453 in words is "twenty-five million, eight hundred ninety-seven thousand, four hundred fifty-three".