563261616 has 30 divisors (see below), whose sum is σ = 1576350620. Its totient is φ = 187753824.

The previous prime is 563261603. The next prime is 563261623. The reversal of 563261616 is 616162365.

563261616 is a `hidden beast` number, since 5 + 6 + 32 + 6 + 1 + 616 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1955626 + ... + 1955913.

Almost surely, 2^563261616 is an apocalyptic number.

It is an amenable number.

563261616 is an abundant number, since it is smaller than the sum of its proper divisors (1013089004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

563261616 is a wasteful number, since it uses less digits than its factorization.

563261616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3911553 (or 3911544 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 563261616 is about 23733.1332950371. The cubic root of 563261616 is about 825.8542072572.

The spelling of 563261616 in words is "five hundred sixty-three million, two hundred sixty-one thousand, six hundred sixteen".