20223275 has 12 divisors (see below), whose sum is σ = 25755792. Its totient is φ = 15740640.

The previous prime is 20223257. The next prime is 20223283. The reversal of 20223275 is 57232202.

It is not a de Polignac number, because 20223275 - 2¹⁸ = 19961131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20223275.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10007 + ... + 11856.

It is an arithmetic number, because the mean of its divisors is an integer number (2146316).

Almost surely, 2^20223275 is an apocalyptic number.

20223275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20223275 is a deficient number, since it is larger than the sum of its proper divisors (5532517).

20223275 is a wasteful number, since it uses less digits than its factorization.

20223275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21910 (or 21905 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 20223275 is about 4497.0295751752. The cubic root of 20223275 is about 272.4481286111.

Adding to 20223275 its reverse (57232202), we get a palindrome (77455477).

The spelling of 20223275 in words is "twenty million, two hundred twenty-three thousand, two hundred seventy-five".