83506519 has 2 divisors, whose sum is σ = 83506520. Its totient is φ = 83506518.

The previous prime is 83506487. The next prime is 83506531. The reversal of 83506519 is 91560538.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83506519 - 2⁵ = 83506487 is a prime.

It is a super-2 number, since 2×83506519² = 13946677430994722, which contains 22 as substring.

It is equal to p_4861981 and since 83506519 and 4861981 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83506019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41753259 + 41753260.

It is an arithmetic number, because the mean of its divisors is an integer number (41753260).

Almost surely, 2^83506519 is an apocalyptic number.

83506519 is a deficient number, since it is larger than the sum of its proper divisors (1).

83506519 is an equidigital number, since it uses as much as digits as its factorization.

83506519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 83506519 is about 9138.1901380963. The cubic root of 83506519 is about 437.0926062279.

The spelling of 83506519 in words is "eighty-three million, five hundred six thousand, five hundred nineteen".