20050061 has 4 divisors (see below), whose sum is σ = 20291712. Its totient is φ = 19808412.

The previous prime is 20050057. The next prime is 20050081. The reversal of 20050061 is 16005002.

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 20050061 - 2² = 20050057 is a prime.

It is a super-2 number, since 2×20050061² = 804009892207442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20050031) 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, 120701 + ... + 120866.

It is an arithmetic number, because the mean of its divisors is an integer number (5072928).

Almost surely, 2^20050061 is an apocalyptic number.

It is an amenable number.

20050061 is a deficient number, since it is larger than the sum of its proper divisors (241651).

20050061 is an equidigital number, since it uses as much as digits as its factorization.

20050061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241650.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 20050061 is about 4477.7294469407. The cubic root of 20050061 is about 271.6680503942.

Adding to 20050061 its reverse (16005002), we get a palindrome (36055063).

The spelling of 20050061 in words is "twenty million, fifty thousand, sixty-one".