25521036113 has 8 divisors (see below), whose sum is σ = 26871636000. Its totient is φ = 24171175008.

The previous prime is 25521036109. The next prime is 25521036127. The reversal of 25521036113 is 31163012552.

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 25521036113 - 2² = 25521036109 is a prime.

It is a super-3 number, since 3×25521036113³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25521036173) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 113063 + ... + 252636.

It is an arithmetic number, because the mean of its divisors is an integer number (3358954500).

Almost surely, 2^25521036113 is an apocalyptic number.

It is an amenable number.

25521036113 is a deficient number, since it is larger than the sum of its proper divisors (1350599887).

25521036113 is a wasteful number, since it uses less digits than its factorization.

25521036113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369391.

The product of its (nonzero) digits is 5400, while the sum is 29.

Adding to 25521036113 its reverse (31163012552), we get a palindrome (56684048665).

The spelling of 25521036113 in words is "twenty-five billion, five hundred twenty-one million, thirty-six thousand, one hundred thirteen".