25002286081 has 4 divisors (see below), whose sum is σ = 25066559700. Its totient is φ = 24938012464.

The previous prime is 25002286079. The next prime is 25002286093. The reversal of 25002286081 is 18068220052.

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 2389645456 + 22612640625 = 48884^2 + 150375^2 .

It is a cyclic number.

It is not a de Polignac number, because 25002286081 - 2¹ = 25002286079 is a prime.

It is a super-2 number, since 2×25002286081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25002286031) 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, 32136226 + ... + 32137003.

It is an arithmetic number, because the mean of its divisors is an integer number (6266639925).

Almost surely, 2^25002286081 is an apocalyptic number.

It is an amenable number.

25002286081 is a deficient number, since it is larger than the sum of its proper divisors (64273619).

25002286081 is an equidigital number, since it uses as much as digits as its factorization.

25002286081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64273618.

The product of its (nonzero) digits is 15360, while the sum is 34.

The spelling of 25002286081 in words is "twenty-five billion, two million, two hundred eighty-six thousand, eighty-one".