12553345450 has 12 divisors (see below), whose sum is σ = 23349222630. Its totient is φ = 5021338160.

The previous prime is 12553345447. The next prime is 12553345451. The reversal of 12553345450 is 5454335521.

It can be written as a sum of positive squares in 3 ways, for example, as 8862904449 + 3690441001 = 94143^2 + 60749^2 .

It is not an unprimeable number, because it can be changed into a prime (12553345451) 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 5 ways as a sum of consecutive naturals, for example, 125533405 + ... + 125533504.

Almost surely, 2^12553345450 is an apocalyptic number.

12553345450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12553345450 is a deficient number, since it is larger than the sum of its proper divisors (10795877180).

12553345450 is a wasteful number, since it uses less digits than its factorization.

12553345450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251066921 (or 251066916 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 37.

The spelling of 12553345450 in words is "twelve billion, five hundred fifty-three million, three hundred forty-five thousand, four hundred fifty".