20452051 has 2 divisors, whose sum is σ = 20452052. Its totient is φ = 20452050.

The previous prime is 20452049. The next prime is 20452057. The reversal of 20452051 is 15025402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20452051 - 2¹ = 20452049 is a prime.

Together with 20452049, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20452057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10226025 + 10226026.

It is an arithmetic number, because the mean of its divisors is an integer number (10226026).

Almost surely, 2^20452051 is an apocalyptic number.

20452051 is a deficient number, since it is larger than the sum of its proper divisors (1).

20452051 is an equidigital number, since it uses as much as digits as its factorization.

20452051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 20452051 is about 4522.3943879321. The cubic root of 20452051 is about 273.4716361693.

Adding to 20452051 its reverse (15025402), we get a palindrome (35477453).

It can be divided in two parts, 2045 and 2051, that added together give a 12-th power (4096 = 2¹²).

The spelling of 20452051 in words is "twenty million, four hundred fifty-two thousand, fifty-one".