82520572499 has 2 divisors, whose sum is σ = 82520572500. Its totient is φ = 82520572498.

The previous prime is 82520572493. The next prime is 82520572597. The reversal of 82520572499 is 99427502528.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82520572499 - 2⁸ = 82520572243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82520572499.

It is not a weakly prime, because it can be changed into another prime (82520572493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41260286249 + 41260286250.

It is an arithmetic number, because the mean of its divisors is an integer number (41260286250).

Almost surely, 2^82520572499 is an apocalyptic number.

82520572499 is a deficient number, since it is larger than the sum of its proper divisors (1).

82520572499 is an equidigital number, since it uses as much as digits as its factorization.

82520572499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3628800, while the sum is 53.

The spelling of 82520572499 in words is "eighty-two billion, five hundred twenty million, five hundred seventy-two thousand, four hundred ninety-nine".