3561500045 has 4 divisors (see below), whose sum is σ = 4273800060. Its totient is φ = 2849200032.

The previous prime is 3561499969. The next prime is 3561500071. The reversal of 3561500045 is 5400051653.

3561500045 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5400051653 = 15427 ⋅350039.

It can be written as a sum of positive squares in 2 ways, for example, as 1091509444 + 2469990601 = 33038^2 + 49699^2 .

It is a cyclic number.

It is not a de Polignac number, because 3561500045 - 2²⁰ = 3560451469 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3561499990 and 3561500017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356150000 + ... + 356150009.

It is an arithmetic number, because the mean of its divisors is an integer number (1068450015).

Almost surely, 2^3561500045 is an apocalyptic number.

It is an amenable number.

3561500045 is a deficient number, since it is larger than the sum of its proper divisors (712300015).

3561500045 is an equidigital number, since it uses as much as digits as its factorization.

3561500045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712300014.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 3561500045 is about 59678.3046424746. The cubic root of 3561500045 is about 1527.1357758622.

Adding to 3561500045 its reverse (5400051653), we get a palindrome (8961551698).

The spelling of 3561500045 in words is "three billion, five hundred sixty-one million, five hundred thousand, forty-five".