20242051 has 2 divisors, whose sum is σ = 20242052. Its totient is φ = 20242050.

The previous prime is 20242031. The next prime is 20242067. The reversal of 20242051 is 15024202.

It is an a-pointer prime, because the next prime (20242067) can be obtained adding 20242051 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20242051 is a prime.

It is not a weakly prime, because it can be changed into another prime (20242021) 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, 10121025 + 10121026.

It is an arithmetic number, because the mean of its divisors is an integer number (10121026).

Almost surely, 2^20242051 is an apocalyptic number.

20242051 is a deficient number, since it is larger than the sum of its proper divisors (1).

20242051 is an equidigital number, since it uses as much as digits as its factorization.

20242051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 20242051 is about 4499.1166910850. The cubic root of 20242051 is about 272.5324193396.

Adding to 20242051 its reverse (15024202), we get a palindrome (35266253).

The spelling of 20242051 in words is "twenty million, two hundred forty-two thousand, fifty-one".