20052194 has 4 divisors (see below), whose sum is σ = 30078294. Its totient is φ = 10026096.

The previous prime is 20052181. The next prime is 20052209. The reversal of 20052194 is 49125002.

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

It can be written as a sum of positive squares in only one way, i.e., 20025625 + 26569 = 4475^2 + 163^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5013047 + ... + 5013050.

Almost surely, 2^20052194 is an apocalyptic number.

20052194 is a deficient number, since it is larger than the sum of its proper divisors (10026100).

20052194 is a wasteful number, since it uses less digits than its factorization.

20052194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10026099.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 20052194 is about 4477.9676193559. The cubic root of 20052194 is about 271.6776837382.

Adding to 20052194 its reverse (49125002), we get a palindrome (69177196).

The spelling of 20052194 in words is "twenty million, fifty-two thousand, one hundred ninety-four".