13225052231 has 4 divisors (see below), whose sum is σ = 13226082312. Its totient is φ = 13224022152.

The previous prime is 13225052189. The next prime is 13225052299.

It is a happy number.

13225052231 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13225052231 is a prime.

It is a super-2 number, since 2×13225052231² (a number of 21 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 13225052231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13225052431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 495536 + ... + 521541.

It is an arithmetic number, because the mean of its divisors is an integer number (3306520578).

Almost surely, 2^13225052231 is an apocalyptic number.

13225052231 is a deficient number, since it is larger than the sum of its proper divisors (1030081).

13225052231 is a wasteful number, since it uses less digits than its factorization.

13225052231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030080.

The product of its (nonzero) digits is 3600, while the sum is 26.

It can be divided in two parts, 132250 and 52231, that added together give a palindrome (184481).

The spelling of 13225052231 in words is "thirteen billion, two hundred twenty-five million, fifty-two thousand, two hundred thirty-one".