12504450452 has 24 divisors (see below), whose sum is σ = 23617691496. Its totient is φ = 5758645248.

The previous prime is 12504450433. The next prime is 12504450493. The reversal of 12504450452 is 25405440521.

It can be written as a sum of positive squares in 4 ways, for example, as 1277776516 + 11226673936 = 35746^2 + 105956^2 .

It is a super-2 number, since 2×12504450452² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239333 + ... + 286860.

It is an arithmetic number, because the mean of its divisors is an integer number (984070479).

Almost surely, 2^12504450452 is an apocalyptic number.

It is an amenable number.

12504450452 is a deficient number, since it is larger than the sum of its proper divisors (11113241044).

12504450452 is a wasteful number, since it uses less digits than its factorization.

12504450452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526667 (or 526665 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 32.

Adding to 12504450452 its reverse (25405440521), we get a palindrome (37909890973).

The spelling of 12504450452 in words is "twelve billion, five hundred four million, four hundred fifty thousand, four hundred fifty-two".