83563541 has 2 divisors, whose sum is σ = 83563542. Its totient is φ = 83563540.

The previous prime is 83563477. The next prime is 83563567. The reversal of 83563541 is 14536538.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72607441 + 10956100 = 8521^2 + 3310^2 .

It is a cyclic number.

It is not a de Polignac number, because 83563541 - 2⁶ = 83563477 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83563141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41781770 + 41781771.

It is an arithmetic number, because the mean of its divisors is an integer number (41781771).

Almost surely, 2^83563541 is an apocalyptic number.

It is an amenable number.

83563541 is a deficient number, since it is larger than the sum of its proper divisors (1).

83563541 is an equidigital number, since it uses as much as digits as its factorization.

83563541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 35.

The square root of 83563541 is about 9141.3095888937. The cubic root of 83563541 is about 437.1920724092.

The spelling of 83563541 in words is "eighty-three million, five hundred sixty-three thousand, five hundred forty-one".