20524412243 has 8 divisors (see below), whose sum is σ = 20596753920. Its totient is φ = 20452160520.

The previous prime is 20524412231. The next prime is 20524412267. The reversal of 20524412243 is 34221442502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20524412243 - 2⁸ = 20524411987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20524412143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 452138 + ... + 495456.

It is an arithmetic number, because the mean of its divisors is an integer number (2574594240).

Almost surely, 2^20524412243 is an apocalyptic number.

20524412243 is a deficient number, since it is larger than the sum of its proper divisors (72341677).

20524412243 is a wasteful number, since it uses less digits than its factorization.

20524412243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44977.

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 20524412243 its reverse (34221442502), we get a palindrome (54745854745).

The spelling of 20524412243 in words is "twenty billion, five hundred twenty-four million, four hundred twelve thousand, two hundred forty-three".