20059901 has 2 divisors, whose sum is σ = 20059902. Its totient is φ = 20059900.

The previous prime is 20059861. The next prime is 20059903. The reversal of 20059901 is 10995002.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13032100 + 7027801 = 3610^2 + 2651^2 .

It is a cyclic number.

It is not a de Polignac number, because 20059901 - 2¹⁰ = 20058877 is a prime.

Together with 20059903, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20059903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10029950 + 10029951.

It is an arithmetic number, because the mean of its divisors is an integer number (10029951).

Almost surely, 2^20059901 is an apocalyptic number.

It is an amenable number.

20059901 is a deficient number, since it is larger than the sum of its proper divisors (1).

20059901 is an equidigital number, since it uses as much as digits as its factorization.

20059901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810, while the sum is 26.

The square root of 20059901 is about 4478.8280833272. The cubic root of 20059901 is about 271.7124854448.

The spelling of 20059901 in words is "twenty million, fifty-nine thousand, nine hundred one".