25891463 has 8 divisors (see below), whose sum is σ = 27953856. Its totient is φ = 23839200.

The previous prime is 25891457. The next prime is 25891487. The reversal of 25891463 is 36419852.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25891463 - 2⁴ = 25891447 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 (25891163) 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 7 ways as a sum of consecutive naturals, for example, 3293 + ... + 7913.

It is an arithmetic number, because the mean of its divisors is an integer number (3494232).

Almost surely, 2^25891463 is an apocalyptic number.

25891463 is a deficient number, since it is larger than the sum of its proper divisors (2062393).

25891463 is a wasteful number, since it uses less digits than its factorization.

25891463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5065.

The product of its digits is 51840, while the sum is 38.

The square root of 25891463 is about 5088.3654546426. The cubic root of 25891463 is about 295.8368005589.

The spelling of 25891463 in words is "twenty-five million, eight hundred ninety-one thousand, four hundred sixty-three".