6563390045 has 4 divisors (see below), whose sum is σ = 7876068060. Its totient is φ = 5250712032.

The previous prime is 6563390021. The next prime is 6563390047. The reversal of 6563390045 is 5400933656.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2858720089 + 3704669956 = 53467^2 + 60866^2 .

It is a cyclic number.

It is not a de Polignac number, because 6563390045 - 2¹² = 6563385949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6563389984 and 6563390011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6563390047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 656339000 + ... + 656339009.

It is an arithmetic number, because the mean of its divisors is an integer number (1969017015).

Almost surely, 2^6563390045 is an apocalyptic number.

It is an amenable number.

6563390045 is a deficient number, since it is larger than the sum of its proper divisors (1312678015).

6563390045 is a wasteful number, since it uses less digits than its factorization.

6563390045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312678014.

The product of its (nonzero) digits is 291600, while the sum is 41.

The square root of 6563390045 is about 81014.7520208511. The cubic root of 6563390045 is about 1872.3027334029.

The spelling of 6563390045 in words is "six billion, five hundred sixty-three million, three hundred ninety thousand, forty-five".