571625563 has 2 divisors, whose sum is σ = 571625564. Its totient is φ = 571625562.

The previous prime is 571625557. The next prime is 571625573. The reversal of 571625563 is 365526175.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 571625563 - 2²¹ = 569528411 is a prime.

It is not a weakly prime, because it can be changed into another prime (571625533) by changing a digit.

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 as a sum of consecutive naturals, namely, 285812781 + 285812782.

It is an arithmetic number, because the mean of its divisors is an integer number (285812782).

Almost surely, 2^571625563 is an apocalyptic number.

571625563 is a deficient number, since it is larger than the sum of its proper divisors (1).

571625563 is an equidigital number, since it uses as much as digits as its factorization.

571625563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 189000, while the sum is 40.

The square root of 571625563 is about 23908.6922059740. The cubic root of 571625563 is about 829.9218792299.

The spelling of 571625563 in words is "five hundred seventy-one million, six hundred twenty-five thousand, five hundred sixty-three".