25533340011 has 24 divisors (see below), whose sum is σ = 37126490544. Its totient is φ = 16909421760.

The previous prime is 25533339983. The next prime is 25533340033. The reversal of 25533340011 is 11004333552.

25533340011 is a `hidden beast` number, since 255 + 3 + 3 + 3 + 400 + 1 + 1 = 666.

It is not a de Polignac number, because 25533340011 - 2⁶ = 25533339947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25533340081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1161060 + ... + 1182846.

It is an arithmetic number, because the mean of its divisors is an integer number (1546937106).

Almost surely, 2^25533340011 is an apocalyptic number.

25533340011 is a deficient number, since it is larger than the sum of its proper divisors (11593150533).

25533340011 is a wasteful number, since it uses less digits than its factorization.

25533340011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22651 (or 22648 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 25533340011 its reverse (11004333552), we get a palindrome (36537673563).

The spelling of 25533340011 in words is "twenty-five billion, five hundred thirty-three million, three hundred forty thousand, eleven".