83525579 has 2 divisors, whose sum is σ = 83525580. Its totient is φ = 83525578.

The previous prime is 83525557. The next prime is 83525587. The reversal of 83525579 is 97552538.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83525579 is a prime.

It is not a weakly prime, because it can be changed into another prime (83525549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41762789 + 41762790.

It is an arithmetic number, because the mean of its divisors is an integer number (41762790).

Almost surely, 2^83525579 is an apocalyptic number.

83525579 is a deficient number, since it is larger than the sum of its proper divisors (1).

83525579 is an equidigital number, since it uses as much as digits as its factorization.

83525579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 378000, while the sum is 44.

The square root of 83525579 is about 9139.2329546850. The cubic root of 83525579 is about 437.1258585273.

It can be divided in two parts, 8352 and 5579, that added together give a palindrome (13931).

The spelling of 83525579 in words is "eighty-three million, five hundred twenty-five thousand, five hundred seventy-nine".