20544099 has 8 divisors (see below), whose sum is σ = 27502272. Its totient is φ = 13641000.

The previous prime is 20544089. The next prime is 20544101. The reversal of 20544099 is 99044502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20544099 - 2¹¹ = 20542051 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (20544049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12889 + ... + 14394.

It is an arithmetic number, because the mean of its divisors is an integer number (3437784).

Almost surely, 2^20544099 is an apocalyptic number.

20544099 is a deficient number, since it is larger than the sum of its proper divisors (6958173).

20544099 is a wasteful number, since it uses less digits than its factorization.

20544099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27537.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 20544099 is about 4532.5598727430. The cubic root of 20544099 is about 273.8812910393.

The spelling of 20544099 in words is "twenty million, five hundred forty-four thousand, ninety-nine".