12345224525 has 6 divisors (see below), whose sum is σ = 15308078442. Its totient is φ = 9876179600.

The previous prime is 12345224491. The next prime is 12345224527. The reversal of 12345224525 is 52542254321.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 109767529 + 12235456996 = 10477^2 + 110614^2 .

It is not a de Polignac number, because 12345224525 - 2⁶ = 12345224461 is a prime.

It is a super-2 number, since 2×12345224525² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12345224527) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 246904466 + ... + 246904515.

It is an arithmetic number, because the mean of its divisors is an integer number (2551346407).

Almost surely, 2^12345224525 is an apocalyptic number.

It is an amenable number.

12345224525 is a deficient number, since it is larger than the sum of its proper divisors (2962853917).

12345224525 is an equidigital number, since it uses as much as digits as its factorization.

12345224525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493808991 (or 493808986 counting only the distinct ones).

The product of its digits is 96000, while the sum is 35.

Adding to 12345224525 its reverse (52542254321), we get a palindrome (64887478846).

The spelling of 12345224525 in words is "twelve billion, three hundred forty-five million, two hundred twenty-four thousand, five hundred twenty-five".