20053942 has 4 divisors (see below), whose sum is σ = 30080916. Its totient is φ = 10026970.

The previous prime is 20053937. The next prime is 20053951. The reversal of 20053942 is 24935002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24935002 = 2 ⋅12467501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5013484 + ... + 5013487.

It is an arithmetic number, because the mean of its divisors is an integer number (7520229).

Almost surely, 2^20053942 is an apocalyptic number.

20053942 is a deficient number, since it is larger than the sum of its proper divisors (10026974).

20053942 is a wasteful number, since it uses less digits than its factorization.

20053942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10026973.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 20053942 is about 4478.1627929319. The cubic root of 20053942 is about 271.6855777837.

Adding to 20053942 its reverse (24935002), we get a palindrome (44988944).

The spelling of 20053942 in words is "twenty million, fifty-three thousand, nine hundred forty-two".