20095297 has 4 divisors (see below), whose sum is σ = 20242116. Its totient is φ = 19948480.

The previous prime is 20095279. The next prime is 20095333. The reversal of 20095297 is 79259002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12609601 + 7485696 = 3551^2 + 2736^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20095297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20095237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73204 + ... + 73477.

It is an arithmetic number, because the mean of its divisors is an integer number (5060529).

Almost surely, 2^20095297 is an apocalyptic number.

It is an amenable number.

20095297 is a deficient number, since it is larger than the sum of its proper divisors (146819).

20095297 is a wasteful number, since it uses less digits than its factorization.

20095297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146818.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 20095297 is about 4482.7778218422. Note that the first 3 decimals coincide. The cubic root of 20095297 is about 271.8722051415.

The spelling of 20095297 in words is "twenty million, ninety-five thousand, two hundred ninety-seven".