83570563 has 2 divisors, whose sum is σ = 83570564. Its totient is φ = 83570562.

The previous prime is 83570527. The next prime is 83570567. The reversal of 83570563 is 36507538.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83570563 - 2⁹ = 83570051 is a prime.

It is not a weakly prime, because it can be changed into another prime (83570567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41785281 + 41785282.

It is an arithmetic number, because the mean of its divisors is an integer number (41785282).

Almost surely, 2^83570563 is an apocalyptic number.

83570563 is a deficient number, since it is larger than the sum of its proper divisors (1).

83570563 is an equidigital number, since it uses as much as digits as its factorization.

83570563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 83570563 is about 9141.6936614612. The cubic root of 83570563 is about 437.2043180876.

The spelling of 83570563 in words is "eighty-three million, five hundred seventy thousand, five hundred sixty-three".