25550230231 has 8 divisors (see below), whose sum is σ = 26350580160. Its totient is φ = 24755659488.

The previous prime is 25550230219. The next prime is 25550230253. The reversal of 25550230231 is 13203205552.

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 25550230231 - 2²³ = 25541841623 is a prime.

It is a super-2 number, since 2×25550230231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25550230231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25550230261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1435816 + ... + 1453501.

It is an arithmetic number, because the mean of its divisors is an integer number (3293822520).

Almost surely, 2^25550230231 is an apocalyptic number.

25550230231 is a deficient number, since it is larger than the sum of its proper divisors (800349929).

25550230231 is a wasteful number, since it uses less digits than its factorization.

25550230231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2889593.

The product of its (nonzero) digits is 9000, while the sum is 28.

Adding to 25550230231 its reverse (13203205552), we get a palindrome (38753435783).

The spelling of 25550230231 in words is "twenty-five billion, five hundred fifty million, two hundred thirty thousand, two hundred thirty-one".