25500433011 has 16 divisors (see below), whose sum is σ = 34674894720. Its totient is φ = 16664764160.

The previous prime is 25500433009. The next prime is 25500433019. The reversal of 25500433011 is 11033400552.

It is a cyclic number.

It is not a de Polignac number, because 25500433011 - 2¹ = 25500433009 is a prime.

It is a super-2 number, since 2×25500433011² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25500433019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141585 + ... + 266546.

It is an arithmetic number, because the mean of its divisors is an integer number (2167180920).

Almost surely, 2^25500433011 is an apocalyptic number.

25500433011 is a deficient number, since it is larger than the sum of its proper divisors (9174461709).

25500433011 is a wasteful number, since it uses less digits than its factorization.

25500433011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408546.

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 25500433011 its reverse (11033400552), we get a palindrome (36533833563).

The spelling of 25500433011 in words is "twenty-five billion, five hundred million, four hundred thirty-three thousand, eleven".