20252201 has 4 divisors (see below), whose sum is σ = 20634372. Its totient is φ = 19870032.

The previous prime is 20252189. The next prime is 20252231. The reversal of 20252201 is 10225202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16410601 + 3841600 = 4051^2 + 1960^2 .

It is a cyclic number.

It is not a de Polignac number, because 20252201 - 2⁶ = 20252137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20252231) 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, 191006 + ... + 191111.

It is an arithmetic number, because the mean of its divisors is an integer number (5158593).

Almost surely, 2^20252201 is an apocalyptic number.

It is an amenable number.

20252201 is a deficient number, since it is larger than the sum of its proper divisors (382171).

20252201 is an equidigital number, since it uses as much as digits as its factorization.

20252201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382170.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 20252201 is about 4500.2445489106. The cubic root of 20252201 is about 272.5779638323.

Adding to 20252201 its reverse (10225202), we get a palindrome (30477403).

The spelling of 20252201 in words is "twenty million, two hundred fifty-two thousand, two hundred one".