20062261 has 4 divisors (see below), whose sum is σ = 21242412. Its totient is φ = 18882112.

The previous prime is 20062247. The next prime is 20062277. The reversal of 20062261 is 16226002.

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 17901361 + 2160900 = 4231^2 + 1470^2 .

It is a cyclic number.

It is not a de Polignac number, because 20062261 - 2¹¹ = 20060213 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 (20062201) 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, 590050 + ... + 590083.

It is an arithmetic number, because the mean of its divisors is an integer number (5310603).

Almost surely, 2^20062261 is an apocalyptic number.

It is an amenable number.

20062261 is a deficient number, since it is larger than the sum of its proper divisors (1180151).

20062261 is a wasteful number, since it uses less digits than its factorization.

20062261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180150.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 20062261 is about 4479.0915373544. The cubic root of 20062261 is about 271.7231404711.

Adding to 20062261 its reverse (16226002), we get a palindrome (36288263).

The spelling of 20062261 in words is "twenty million, sixty-two thousand, two hundred sixty-one".