25245671 has 4 divisors (see below), whose sum is σ = 27540744. Its totient is φ = 22950600.

The previous prime is 25245659. The next prime is 25245673. The reversal of 25245671 is 17654252.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25245671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25245673) 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, 1147520 + ... + 1147541.

It is an arithmetic number, because the mean of its divisors is an integer number (6885186).

Almost surely, 2^25245671 is an apocalyptic number.

25245671 is a deficient number, since it is larger than the sum of its proper divisors (2295073).

25245671 is a wasteful number, since it uses less digits than its factorization.

25245671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2295072.

The product of its digits is 16800, while the sum is 32.

The square root of 25245671 is about 5024.5070404966. The cubic root of 25245671 is about 293.3564486203.

The spelling of 25245671 in words is "twenty-five million, two hundred forty-five thousand, six hundred seventy-one".