20226855 has 32 divisors (see below), whose sum is σ = 37387008. Its totient is φ = 9228800.

The previous prime is 20226853. The next prime is 20226919. The reversal of 20226855 is 55862202.

It is not a de Polignac number, because 20226855 - 2¹ = 20226853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20226853) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 801 + ... + 6410.

It is an arithmetic number, because the mean of its divisors is an integer number (1168344).

Almost surely, 2^20226855 is an apocalyptic number.

20226855 is a deficient number, since it is larger than the sum of its proper divisors (17160153).

20226855 is a wasteful number, since it uses less digits than its factorization.

20226855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7247.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 20226855 is about 4497.4275980832. The cubic root of 20226855 is about 272.4642042591.

The spelling of 20226855 in words is "twenty million, two hundred twenty-six thousand, eight hundred fifty-five".