25045673 has 4 divisors (see below), whose sum is σ = 25090260. Its totient is φ = 25001088.

The previous prime is 25045663. The next prime is 25045679. The reversal of 25045673 is 37654052.

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 11854249 + 13191424 = 3443^2 + 3632^2 .

It is a cyclic number.

It is not a de Polignac number, because 25045673 - 2⁶ = 25045609 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25045679) 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, 21440 + ... + 22577.

It is an arithmetic number, because the mean of its divisors is an integer number (6272565).

Almost surely, 2^25045673 is an apocalyptic number.

It is an amenable number.

25045673 is a deficient number, since it is larger than the sum of its proper divisors (44587).

25045673 is an equidigital number, since it uses as much as digits as its factorization.

25045673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44586.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 25045673 is about 5004.5652158804. The cubic root of 25045673 is about 292.5797303773.

The spelling of 25045673 in words is "twenty-five million, forty-five thousand, six hundred seventy-three".