20572039 has 2 divisors, whose sum is σ = 20572040. Its totient is φ = 20572038.

The previous prime is 20572033. The next prime is 20572043. The reversal of 20572039 is 93027502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20572039 - 2⁵ = 20572007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20571998 and 20572016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20572033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10286019 + 10286020.

It is an arithmetic number, because the mean of its divisors is an integer number (10286020).

Almost surely, 2^20572039 is an apocalyptic number.

20572039 is a deficient number, since it is larger than the sum of its proper divisors (1).

20572039 is an equidigital number, since it uses as much as digits as its factorization.

20572039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 20572039 is about 4535.6409690362. The cubic root of 20572039 is about 274.0053944273.

It can be divided in two parts, 2057 and 2039, that added together give a 12-th power (4096 = 2¹²).

The spelling of 20572039 in words is "twenty million, five hundred seventy-two thousand, thirty-nine".