20529227 has 8 divisors (see below), whose sum is σ = 20958000. Its totient is φ = 20103264.

The previous prime is 20529221. The next prime is 20529259. The reversal of 20529227 is 72292502.

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 20529227 - 2⁴ = 20529211 is a prime.

It is a super-2 number, since 2×20529227² = 842898322435058, which contains 22 as substring.

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 20529227.

It is not an unprimeable number, because it can be changed into a prime (20529221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20093 + ... + 21089.

It is an arithmetic number, because the mean of its divisors is an integer number (2619750).

Almost surely, 2^20529227 is an apocalyptic number.

20529227 is a deficient number, since it is larger than the sum of its proper divisors (428773).

20529227 is an equidigital number, since it uses as much as digits as its factorization.

20529227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1405.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 20529227 is about 4530.9190017037. The cubic root of 20529227 is about 273.8151869670.

The spelling of 20529227 in words is "twenty million, five hundred twenty-nine thousand, two hundred twenty-seven".