25473863 has 4 divisors (see below), whose sum is σ = 25483968. Its totient is φ = 25463760.

The previous prime is 25473839. The next prime is 25473881. The reversal of 25473863 is 36837452.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 25473863 - 2⁸ = 25473607 is a prime.

It is a super-2 number, since 2×25473863² = 1297835392285538, 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 (25473883) 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, 2195 + ... + 7467.

It is an arithmetic number, because the mean of its divisors is an integer number (6370992).

Almost surely, 2^25473863 is an apocalyptic number.

25473863 is a deficient number, since it is larger than the sum of its proper divisors (10105).

25473863 is an equidigital number, since it uses as much as digits as its factorization.

25473863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10104.

The product of its digits is 120960, while the sum is 38.

The square root of 25473863 is about 5047.1638570587. The cubic root of 25473863 is about 294.2376678156.

The spelling of 25473863 in words is "twenty-five million, four hundred seventy-three thousand, eight hundred sixty-three".