20522043 has 24 divisors (see below), whose sum is σ = 31691088. Its totient is φ = 12751872.

The previous prime is 20522041. The next prime is 20522059. The reversal of 20522043 is 34022502.

It is not a de Polignac number, because 20522043 - 2¹ = 20522041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20522041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16696 + ... + 17882.

It is an arithmetic number, because the mean of its divisors is an integer number (1320462).

Almost surely, 2^20522043 is an apocalyptic number.

20522043 is a deficient number, since it is larger than the sum of its proper divisors (11169045).

20522043 is a wasteful number, since it uses less digits than its factorization.

20522043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323 (or 1320 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 20522043 is about 4530.1261571837. The cubic root of 20522043 is about 273.7832436015.

Adding to 20522043 its reverse (34022502), we get a palindrome (54544545).

It can be divided in two parts, 2052 and 2043, that added together give a triangular number (4095 = T₉₀).

The spelling of 20522043 in words is "twenty million, five hundred twenty-two thousand, forty-three".