25942463 has 4 divisors (see below), whose sum is σ = 26575248. Its totient is φ = 25309680.

The previous prime is 25942409. The next prime is 25942487. The reversal of 25942463 is 36424952.

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 25942463 - 2²² = 21748159 is a prime.

It is a super-2 number, since 2×25942463² = 1346022773012738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25942403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316331 + ... + 316412.

It is an arithmetic number, because the mean of its divisors is an integer number (6643812).

Almost surely, 2^25942463 is an apocalyptic number.

25942463 is a deficient number, since it is larger than the sum of its proper divisors (632785).

25942463 is an equidigital number, since it uses as much as digits as its factorization.

25942463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632784.

The product of its digits is 51840, while the sum is 35.

The square root of 25942463 is about 5093.3744217365. The cubic root of 25942463 is about 296.0309157811.

The spelling of 25942463 in words is "twenty-five million, nine hundred forty-two thousand, four hundred sixty-three".