20059553 has 4 divisors (see below), whose sum is σ = 20486400. Its totient is φ = 19632708.

The previous prime is 20059549. The next prime is 20059583. The reversal of 20059553 is 35595002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20059553 - 2² = 20059549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20059583) 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, 213353 + ... + 213446.

It is an arithmetic number, because the mean of its divisors is an integer number (5121600).

Almost surely, 2^20059553 is an apocalyptic number.

It is an amenable number.

20059553 is a deficient number, since it is larger than the sum of its proper divisors (426847).

20059553 is an equidigital number, since it uses as much as digits as its factorization.

20059553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426846.

The product of its (nonzero) digits is 6750, while the sum is 29.

The square root of 20059553 is about 4478.7892337104. The cubic root of 20059553 is about 271.7109142092.

The spelling of 20059553 in words is "twenty million, fifty-nine thousand, five hundred fifty-three".