25533132412 has 12 divisors (see below), whose sum is σ = 45078407136. Its totient is φ = 12653587520.

The previous prime is 25533132379. The next prime is 25533132419. The reversal of 25533132412 is 21423133552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25533132419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28244164 + ... + 28245067.

It is an arithmetic number, because the mean of its divisors is an integer number (3756533928).

Almost surely, 2^25533132412 is an apocalyptic number.

It is an amenable number.

25533132412 is a deficient number, since it is larger than the sum of its proper divisors (19545274724).

25533132412 is a wasteful number, since it uses less digits than its factorization.

25533132412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56489348 (or 56489346 counting only the distinct ones).

The product of its digits is 21600, while the sum is 31.

Adding to 25533132412 its reverse (21423133552), we get a palindrome (46956265964).

The spelling of 25533132412 in words is "twenty-five billion, five hundred thirty-three million, one hundred thirty-two thousand, four hundred twelve".