25431463 has 4 divisors (see below), whose sum is σ = 26308440. Its totient is φ = 24554488.

The previous prime is 25431457. The next prime is 25431493. The reversal of 25431463 is 36413452.

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 25431463 - 2⁵ = 25431431 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 (25431433) 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, 438445 + ... + 438502.

It is an arithmetic number, because the mean of its divisors is an integer number (6577110).

Almost surely, 2^25431463 is an apocalyptic number.

25431463 is a deficient number, since it is larger than the sum of its proper divisors (876977).

25431463 is an equidigital number, since it uses as much as digits as its factorization.

25431463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876976.

The product of its digits is 8640, while the sum is 28.

The square root of 25431463 is about 5042.9617289843. The cubic root of 25431463 is about 294.0743290863.

The spelling of 25431463 in words is "twenty-five million, four hundred thirty-one thousand, four hundred sixty-three".