25412647 has 4 divisors (see below), whose sum is σ = 27367480. Its totient is φ = 23457816.

The previous prime is 25412627. The next prime is 25412659. The reversal of 25412647 is 74621452.

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

It is a cyclic number.

It is not a de Polignac number, because 25412647 - 2²³ = 17024039 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 (25412617) 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 3 ways as a sum of consecutive naturals, for example, 977397 + ... + 977422.

It is an arithmetic number, because the mean of its divisors is an integer number (6841870).

Almost surely, 2^25412647 is an apocalyptic number.

25412647 is a deficient number, since it is larger than the sum of its proper divisors (1954833).

25412647 is a wasteful number, since it uses less digits than its factorization.

25412647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1954832.

The product of its digits is 13440, while the sum is 31.

The square root of 25412647 is about 5041.0958134120. The cubic root of 25412647 is about 294.0017855106.

The spelling of 25412647 in words is "twenty-five million, four hundred twelve thousand, six hundred forty-seven".