563992261 has 12 divisors (see below), whose sum is σ = 667562272. Its totient is φ = 466747344.

The previous prime is 563992213. The next prime is 563992277. The reversal of 563992261 is 162299365.

It is not a de Polignac number, because 563992261 - 2⁹ = 563991749 is a prime.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (563992211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42015 + ... + 53788.

Almost surely, 2^563992261 is an apocalyptic number.

It is an amenable number.

563992261 is a deficient number, since it is larger than the sum of its proper divisors (103570011).

563992261 is an equidigital number, since it uses as much as digits as its factorization.

563992261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95868 (or 95839 counting only the distinct ones).

The product of its digits is 174960, while the sum is 43.

The square root of 563992261 is about 23748.5212381740. The cubic root of 563992261 is about 826.2111435438.

The spelling of 563992261 in words is "five hundred sixty-three million, nine hundred ninety-two thousand, two hundred sixty-one".