25633155320 has 32 divisors (see below), whose sum is σ = 58762804320. Its totient is φ = 10059803520.

The previous prime is 25633155311. The next prime is 25633155323. The reversal of 25633155320 is 2355133652.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25633155323) 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 7 ways as a sum of consecutive naturals, for example, 6043436 + ... + 6047675.

It is an arithmetic number, because the mean of its divisors is an integer number (1836337635).

Almost surely, 2^25633155320 is an apocalyptic number.

25633155320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25633155320 is an abundant number, since it is smaller than the sum of its proper divisors (33129649000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25633155320 is a wasteful number, since it uses less digits than its factorization.

25633155320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12091175 (or 12091171 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 35.

Adding to 25633155320 its reverse (2355133652), we get a palindrome (27988288972).

The spelling of 25633155320 in words is "twenty-five billion, six hundred thirty-three million, one hundred fifty-five thousand, three hundred twenty".