20285295 has 16 divisors (see below), whose sum is σ = 32555520. Its totient is φ = 10785824.

The previous prime is 20285281. The next prime is 20285299. The reversal of 20285295 is 59258202.

It is a cyclic number.

It is not a de Polignac number, because 20285295 - 2⁵ = 20285263 is a prime.

It is a super-2 number, since 2×20285295² = 822986386474050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20285299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3502 + ... + 7268.

It is an arithmetic number, because the mean of its divisors is an integer number (2034720).

Almost surely, 2^20285295 is an apocalyptic number.

20285295 is a deficient number, since it is larger than the sum of its proper divisors (12270225).

20285295 is a wasteful number, since it uses less digits than its factorization.

20285295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4134.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 20285295 is about 4503.9199593243. The cubic root of 20285295 is about 272.7263557040.

The spelling of 20285295 in words is "twenty million, two hundred eighty-five thousand, two hundred ninety-five".