20392051 has 2 divisors, whose sum is σ = 20392052. Its totient is φ = 20392050.

The previous prime is 20392049. The next prime is 20392063. The reversal of 20392051 is 15029302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20392051 - 2¹ = 20392049 is a prime.

Together with 20392049, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20392751) 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, 10196025 + 10196026.

It is an arithmetic number, because the mean of its divisors is an integer number (10196026).

Almost surely, 2^20392051 is an apocalyptic number.

20392051 is a deficient number, since it is larger than the sum of its proper divisors (1).

20392051 is an equidigital number, since it uses as much as digits as its factorization.

20392051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 20392051 is about 4515.7558614256. The cubic root of 20392051 is about 273.2039471243.

The spelling of 20392051 in words is "twenty million, three hundred ninety-two thousand, fifty-one".