25845434 has 12 divisors (see below), whose sum is σ = 40917114. Its totient is φ = 12242232.

The previous prime is 25845433. The next prime is 25845437. The reversal of 25845434 is 43454852.

It can be written as a sum of positive squares in only one way, i.e., 25351225 + 494209 = 5035^2 + 703^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25845394 and 25845403.

It is not an unprimeable number, because it can be changed into a prime (25845433) 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, 17177 + ... + 18620.

Almost surely, 2^25845434 is an apocalyptic number.

25845434 is a deficient number, since it is larger than the sum of its proper divisors (15071680).

25845434 is a wasteful number, since it uses less digits than its factorization.

25845434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35837 (or 35818 counting only the distinct ones).

The product of its digits is 76800, while the sum is 35.

The square root of 25845434 is about 5083.8404774344. The cubic root of 25845434 is about 295.6613868920.

The spelling of 25845434 in words is "twenty-five million, eight hundred forty-five thousand, four hundred thirty-four".