25442200245 has 64 divisors (see below), whose sum is σ = 50854293504. Its totient is φ = 10552120320.

The previous prime is 25442200241. The next prime is 25442200271. The reversal of 25442200245 is 54200224452.

It is not a de Polignac number, because 25442200245 - 2² = 25442200241 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25442200241) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 559069 + ... + 602861.

It is an arithmetic number, because the mean of its divisors is an integer number (794598336).

Almost surely, 2^25442200245 is an apocalyptic number.

It is an amenable number.

25442200245 is a deficient number, since it is larger than the sum of its proper divisors (25412093259).

25442200245 is a wasteful number, since it uses less digits than its factorization.

25442200245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44322.

The product of its (nonzero) digits is 25600, while the sum is 30.

Adding to 25442200245 its reverse (54200224452), we get a palindrome (79642424697).

The spelling of 25442200245 in words is "twenty-five billion, four hundred forty-two million, two hundred thousand, two hundred forty-five".