563746655 has 4 divisors (see below), whose sum is σ = 676495992. Its totient is φ = 450997320.

The previous prime is 563746649. The next prime is 563746657. The reversal of 563746655 is 556647365.

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

It is not a de Polignac number, because 563746655 - 2⁶ = 563746591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (563746657) 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, 56374661 + ... + 56374670.

It is an arithmetic number, because the mean of its divisors is an integer number (169123998).

Almost surely, 2^563746655 is an apocalyptic number.

563746655 is a deficient number, since it is larger than the sum of its proper divisors (112749337).

563746655 is a wasteful number, since it uses less digits than its factorization.

563746655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112749336.

The product of its digits is 2268000, while the sum is 47.

The square root of 563746655 is about 23743.3497004951. The cubic root of 563746655 is about 826.0911939798.

The spelling of 563746655 in words is "five hundred sixty-three million, seven hundred forty-six thousand, six hundred fifty-five".