563953523 has 4 divisors (see below), whose sum is σ = 644518320. Its totient is φ = 483388728.

The previous prime is 563953501. The next prime is 563953541. The reversal of 563953523 is 325359365.

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

It is a cyclic number.

It is not a de Polignac number, because 563953523 - 2²⁶ = 496844659 is a prime.

It is a super-2 number, since 2×563953523² = 636087152208223058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (563950523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40282388 + ... + 40282401.

It is an arithmetic number, because the mean of its divisors is an integer number (161129580).

Almost surely, 2^563953523 is an apocalyptic number.

563953523 is a deficient number, since it is larger than the sum of its proper divisors (80564797).

563953523 is an equidigital number, since it uses as much as digits as its factorization.

563953523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80564796.

The product of its digits is 364500, while the sum is 41.

The square root of 563953523 is about 23747.7056365452. The cubic root of 563953523 is about 826.1922269130.

The spelling of 563953523 in words is "five hundred sixty-three million, nine hundred fifty-three thousand, five hundred twenty-three".