20524532199 has 4 divisors (see below), whose sum is σ = 27366042936. Its totient is φ = 13683021464.

The previous prime is 20524532183. The next prime is 20524532221. The reversal of 20524532199 is 99123542502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20524532199 - 2⁴ = 20524532183 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20524532199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20524532129) 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 in 3 ways as a sum of consecutive naturals, for example, 3420755364 + ... + 3420755369.

It is an arithmetic number, because the mean of its divisors is an integer number (6841510734).

Almost surely, 2^20524532199 is an apocalyptic number.

20524532199 is a deficient number, since it is larger than the sum of its proper divisors (6841510737).

20524532199 is an equidigital number, since it uses as much as digits as its factorization.

20524532199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6841510736.

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 20524532199 in words is "twenty billion, five hundred twenty-four million, five hundred thirty-two thousand, one hundred ninety-nine".