20417053 has 4 divisors (see below), whose sum is σ = 20502720. Its totient is φ = 20331388.

The previous prime is 20417029. The next prime is 20417069. The reversal of 20417053 is 35071402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20417053 - 2²¹ = 18319901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20417083) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 42475 + ... + 42952.

It is an arithmetic number, because the mean of its divisors is an integer number (5125680).

Almost surely, 2^20417053 is an apocalyptic number.

It is an amenable number.

20417053 is a deficient number, since it is larger than the sum of its proper divisors (85667).

20417053 is an equidigital number, since it uses as much as digits as its factorization.

20417053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85666.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 20417053 is about 4518.5233207321. The cubic root of 20417053 is about 273.3155568782.

Adding to 20417053 its reverse (35071402), we get a palindrome (55488455).

The spelling of 20417053 in words is "twenty million, four hundred seventeen thousand, fifty-three".