25450085 has 4 divisors (see below), whose sum is σ = 30540108. Its totient is φ = 20360064.

The previous prime is 25450069. The next prime is 25450091. The reversal of 25450085 is 58005452.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10349089 + 15100996 = 3217^2 + 3886^2 .

It is a cyclic number.

It is not a de Polignac number, because 25450085 - 2⁴ = 25450069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2545004 + ... + 2545013.

It is an arithmetic number, because the mean of its divisors is an integer number (7635027).

Almost surely, 2^25450085 is an apocalyptic number.

It is an amenable number.

25450085 is a deficient number, since it is larger than the sum of its proper divisors (5090023).

25450085 is an equidigital number, since it uses as much as digits as its factorization.

25450085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5090022.

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 25450085 is about 5044.8077267622. The cubic root of 25450085 is about 294.1460894886.

The spelling of 25450085 in words is "twenty-five million, four hundred fifty thousand, eighty-five".