25273475690 has 8 divisors (see below), whose sum is σ = 45492256260. Its totient is φ = 10109390272.

The previous prime is 25273475683. The next prime is 25273475713. The reversal of 25273475690 is 9657437252.

It can be written as a sum of positive squares in 2 ways, for example, as 25198705081 + 74770609 = 158741^2 + 8647^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×25273475690² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1263673775 + ... + 1263673794.

Almost surely, 2^25273475690 is an apocalyptic number.

25273475690 is a deficient number, since it is larger than the sum of its proper divisors (20218780570).

25273475690 is a wasteful number, since it uses less digits than its factorization.

25273475690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2527347576.

The product of its (nonzero) digits is 3175200, while the sum is 50.

The spelling of 25273475690 in words is "twenty-five billion, two hundred seventy-three million, four hundred seventy-five thousand, six hundred ninety".