566481553 has 16 divisors (see below), whose sum is σ = 632401920. Its totient is φ = 503010000.

The previous prime is 566481541. The next prime is 566481571. The reversal of 566481553 is 355184665.

It is a cyclic number.

It is not a de Polignac number, because 566481553 - 2⁵ = 566481521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (566481653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 387538 + ... + 388996.

It is an arithmetic number, because the mean of its divisors is an integer number (39525120).

Almost surely, 2^566481553 is an apocalyptic number.

It is an amenable number.

566481553 is a deficient number, since it is larger than the sum of its proper divisors (65920367).

566481553 is a wasteful number, since it uses less digits than its factorization.

566481553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2268.

The product of its digits is 432000, while the sum is 43.

The square root of 566481553 is about 23800.8729461757. The cubic root of 566481553 is about 827.4249086213.

The spelling of 566481553 in words is "five hundred sixty-six million, four hundred eighty-one thousand, five hundred fifty-three".