20295047 has 2 divisors, whose sum is σ = 20295048. Its totient is φ = 20295046.

The previous prime is 20295013. The next prime is 20295061. The reversal of 20295047 is 74059202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20295047 - 2¹² = 20290951 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20225047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10147523 + 10147524.

It is an arithmetic number, because the mean of its divisors is an integer number (10147524).

Almost surely, 2^20295047 is an apocalyptic number.

20295047 is a deficient number, since it is larger than the sum of its proper divisors (1).

20295047 is an equidigital number, since it uses as much as digits as its factorization.

20295047 is an evil number, because the sum of its binary digits is even.

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

The square root of 20295047 is about 4505.0024417307. The cubic root of 20295047 is about 272.7700524038.

The spelling of 20295047 in words is "twenty million, two hundred ninety-five thousand, forty-seven".