25571453 has 4 divisors (see below), whose sum is σ = 25592160. Its totient is φ = 25550748.

The previous prime is 25571443. The next prime is 25571479. The reversal of 25571453 is 35417552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25571453 - 2⁴ = 25571437 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 (25571443) 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, 8375 + ... + 11012.

It is an arithmetic number, because the mean of its divisors is an integer number (6398040).

Almost surely, 2^25571453 is an apocalyptic number.

It is an amenable number.

25571453 is a deficient number, since it is larger than the sum of its proper divisors (20707).

25571453 is a wasteful number, since it uses less digits than its factorization.

25571453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20706.

The product of its digits is 21000, while the sum is 32.

The square root of 25571453 is about 5056.8224212444. The cubic root of 25571453 is about 294.6129290964.

The spelling of 25571453 in words is "twenty-five million, five hundred seventy-one thousand, four hundred fifty-three".