20020529 has 4 divisors (see below), whose sum is σ = 20359920. Its totient is φ = 19681140.

The previous prime is 20020501. The next prime is 20020531. The reversal of 20020529 is 92502002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92502002 = 2 ⋅46251001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20020529 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20020529.

It is not an unprimeable number, because it can be changed into a prime (20020579) 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 in 3 ways as a sum of consecutive naturals, for example, 169607 + ... + 169724.

It is an arithmetic number, because the mean of its divisors is an integer number (5089980).

Almost surely, 2^20020529 is an apocalyptic number.

It is an amenable number.

20020529 is a deficient number, since it is larger than the sum of its proper divisors (339391).

20020529 is an equidigital number, since it uses as much as digits as its factorization.

20020529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339390.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 20020529 is about 4474.4305782971. The cubic root of 20020529 is about 271.5346036996.

The spelling of 20020529 in words is "twenty million, twenty thousand, five hundred twenty-nine".