20003550201 has 6 divisors (see below), whose sum is σ = 28894016970. Its totient is φ = 13335700128.

The previous prime is 20003550173. The next prime is 20003550223. The reversal of 20003550201 is 10205530002.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 17057666025 + 2945884176 = 130605^2 + 54276^2 .

It is not a de Polignac number, because 20003550201 - 2¹⁷ = 20003419129 is a prime.

It is a super-3 number, since 3×20003550201³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20003550601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1111308336 + ... + 1111308353.

It is an arithmetic number, because the mean of its divisors is an integer number (4815669495).

Almost surely, 2^20003550201 is an apocalyptic number.

It is an amenable number.

20003550201 is a deficient number, since it is larger than the sum of its proper divisors (8890466769).

20003550201 is a wasteful number, since it uses less digits than its factorization.

20003550201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222616695 (or 2222616692 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The spelling of 20003550201 in words is "twenty billion, three million, five hundred fifty thousand, two hundred one".