25005133231 has 8 divisors (see below), whose sum is σ = 27797270144. Its totient is φ = 22337091360.

The previous prime is 25005133199. The next prime is 25005133249. The reversal of 25005133231 is 13233150052.

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 25005133231 - 2⁵ = 25005133199 is a prime.

It is a super-2 number, since 2×25005133231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25005133196 and 25005133205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25005133271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31023336 + ... + 31024141.

It is an arithmetic number, because the mean of its divisors is an integer number (3474658768).

Almost surely, 2^25005133231 is an apocalyptic number.

25005133231 is a deficient number, since it is larger than the sum of its proper divisors (2792136913).

25005133231 is a wasteful number, since it uses less digits than its factorization.

25005133231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62047521.

The product of its (nonzero) digits is 2700, while the sum is 25.

Adding to 25005133231 its reverse (13233150052), we get a palindrome (38238283283).

The spelling of 25005133231 in words is "twenty-five billion, five million, one hundred thirty-three thousand, two hundred thirty-one".