25201206113 has 8 divisors (see below), whose sum is σ = 26686000008. Its totient is φ = 23716675584.

The previous prime is 25201206109. The next prime is 25201206131. The reversal of 25201206113 is 31160210252.

It can be written as a sum of positive squares in 4 ways, for example, as 461691169 + 24739514944 = 21487^2 + 157288^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 25201206113 - 2² = 25201206109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25201206013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151745 + ... + 270977.

It is an arithmetic number, because the mean of its divisors is an integer number (3335750001).

Almost surely, 2^25201206113 is an apocalyptic number.

It is an amenable number.

25201206113 is a deficient number, since it is larger than the sum of its proper divisors (1484793895).

25201206113 is a wasteful number, since it uses less digits than its factorization.

25201206113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131683.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 25201206113 its reverse (31160210252), we get a palindrome (56361416365).

The spelling of 25201206113 in words is "twenty-five billion, two hundred one million, two hundred six thousand, one hundred thirteen".