20295427 has 2 divisors, whose sum is σ = 20295428. Its totient is φ = 20295426.

The previous prime is 20295419. The next prime is 20295479. The reversal of 20295427 is 72459202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20295427 - 2³ = 20295419 is a prime.

It is a super-2 number, since 2×20295427² = 823808714224658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20295487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10147713 + 10147714.

It is an arithmetic number, because the mean of its divisors is an integer number (10147714).

Almost surely, 2^20295427 is an apocalyptic number.

20295427 is a deficient number, since it is larger than the sum of its proper divisors (1).

20295427 is an equidigital number, since it uses as much as digits as its factorization.

20295427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 20295427 is about 4505.0446168712. The cubic root of 20295427 is about 272.7717548220.

The spelling of 20295427 in words is "twenty million, two hundred ninety-five thousand, four hundred twenty-seven".