20527099 has 4 divisors (see below), whose sum is σ = 21234960. Its totient is φ = 19819240.

The previous prime is 20527093. The next prime is 20527127. The reversal of 20527099 is 99072502.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20527099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20527093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353887 + ... + 353944.

It is an arithmetic number, because the mean of its divisors is an integer number (5308740).

Almost surely, 2^20527099 is an apocalyptic number.

20527099 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

20527099 is a deficient number, since it is larger than the sum of its proper divisors (707861).

20527099 is an equidigital number, since it uses as much as digits as its factorization.

20527099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707860.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 20527099 is about 4530.6841646709. The cubic root of 20527099 is about 273.8057256779.

The spelling of 20527099 in words is "twenty million, five hundred twenty-seven thousand, ninety-nine".