20022755 has 8 divisors (see below), whose sum is σ = 24248400. Its totient is φ = 15870816.

The previous prime is 20022733. The next prime is 20022791. The reversal of 20022755 is 55722002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20022755 - 2¹⁰ = 20021731 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20022755.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17825 + ... + 18914.

It is an arithmetic number, because the mean of its divisors is an integer number (3031050).

Almost surely, 2^20022755 is an apocalyptic number.

20022755 is a deficient number, since it is larger than the sum of its proper divisors (4225645).

20022755 is a wasteful number, since it uses less digits than its factorization.

20022755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36853.

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 20022755 is about 4474.6793181188. The cubic root of 20022755 is about 271.5446669306.

Adding to 20022755 its reverse (55722002), we get a palindrome (75744757).

The spelling of 20022755 in words is "twenty million, twenty-two thousand, seven hundred fifty-five".