25804723 has 6 divisors (see below), whose sum is σ = 30017796. Its totient is φ = 22118292.

The previous prime is 25804721. The next prime is 25804729. The reversal of 25804723 is 32740852.

It is not a de Polignac number, because 25804723 - 2¹ = 25804721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25804721) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 263265 + ... + 263362.

It is an arithmetic number, because the mean of its divisors is an integer number (5002966).

Almost surely, 2^25804723 is an apocalyptic number.

25804723 is a deficient number, since it is larger than the sum of its proper divisors (4213073).

25804723 is an equidigital number, since it uses as much as digits as its factorization.

25804723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526641 (or 526634 counting only the distinct ones).

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

The square root of 25804723 is about 5079.8349382633. The cubic root of 25804723 is about 295.5060661468.

The spelling of 25804723 in words is "twenty-five million, eight hundred four thousand, seven hundred twenty-three".