20059499 has 4 divisors (see below), whose sum is σ = 20072064. Its totient is φ = 20046936.

The previous prime is 20059477. The next prime is 20059517. The reversal of 20059499 is 99495002.

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 20059499 - 2¹² = 20055403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20059409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3467 + ... + 7220.

It is an arithmetic number, because the mean of its divisors is an integer number (5018016).

Almost surely, 2^20059499 is an apocalyptic number.

20059499 is a deficient number, since it is larger than the sum of its proper divisors (12565).

20059499 is a wasteful number, since it uses less digits than its factorization.

20059499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12564.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 20059499 is about 4478.7832052914. The cubic root of 20059499 is about 271.7106703951.

The spelling of 20059499 in words is "twenty million, fifty-nine thousand, four hundred ninety-nine".