12550400045 has 8 divisors (see below), whose sum is σ = 15147535896. Its totient is φ = 9982282816.

The previous prime is 12550400039. The next prime is 12550400089. The reversal of 12550400045 is 54000405521.

It can be written as a sum of positive squares in 4 ways, for example, as 2978321476 + 9572078569 = 54574^2 + 97837^2 .

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 12550400045 - 2²⁸ = 12281964589 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12550399987 and 12550400023.

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, 7253702 + ... + 7255431.

It is an arithmetic number, because the mean of its divisors is an integer number (1893441987).

Almost surely, 2^12550400045 is an apocalyptic number.

It is an amenable number.

12550400045 is a deficient number, since it is larger than the sum of its proper divisors (2597135851).

12550400045 is a wasteful number, since it uses less digits than its factorization.

12550400045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14509311.

The product of its (nonzero) digits is 4000, while the sum is 26.

Adding to 12550400045 its reverse (54000405521), we get a palindrome (66550805566).

The spelling of 12550400045 in words is "twelve billion, five hundred fifty million, four hundred thousand, forty-five".