25582473 has 20 divisors (see below), whose sum is σ = 43676160. Its totient is φ = 14618232.

The previous prime is 25582457. The next prime is 25582477. The reversal of 25582473 is 37428552.

25582473 is a `hidden beast` number, since 2 + 5 + 582 + 4 + 73 = 666.

It is not a de Polignac number, because 25582473 - 2⁴ = 25582457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25582477) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 21993 + ... + 23126.

It is an arithmetic number, because the mean of its divisors is an integer number (2183808).

Almost surely, 2^25582473 is an apocalyptic number.

It is an amenable number.

25582473 is a deficient number, since it is larger than the sum of its proper divisors (18093687).

25582473 is an equidigital number, since it uses as much as digits as its factorization.

25582473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45138 (or 45129 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 25582473 is about 5057.9119209413. The cubic root of 25582473 is about 294.6552440979.

It can be divided in two parts, 255 and 82473, that added together give a palindrome (82728).

The spelling of 25582473 in words is "twenty-five million, five hundred eighty-two thousand, four hundred seventy-three".