20524039 has 2 divisors, whose sum is σ = 20524040. Its totient is φ = 20524038.

The previous prime is 20524037. The next prime is 20524061. The reversal of 20524039 is 93042502.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20524039 - 2¹ = 20524037 is a prime.

Together with 20524037, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20524037) 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, 10262019 + 10262020.

It is an arithmetic number, because the mean of its divisors is an integer number (10262020).

Almost surely, 2^20524039 is an apocalyptic number.

20524039 is a deficient number, since it is larger than the sum of its proper divisors (1).

20524039 is an equidigital number, since it uses as much as digits as its factorization.

20524039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 20524039 is about 4530.3464547427. The cubic root of 20524039 is about 273.7921194826.

The spelling of 20524039 in words is "twenty million, five hundred twenty-four thousand, thirty-nine".