20535824803 has 16 divisors (see below), whose sum is σ = 22648299520. Its totient is φ = 18500184864.

The previous prime is 20535824797. The next prime is 20535824809. The reversal of 20535824803 is 30842853502.

It is an interprime number because it is at equal distance from previous prime (20535824797) and next prime (20535824809).

It is a cyclic number.

It is not a de Polignac number, because 20535824803 - 2¹³ = 20535816611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20535824809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 700600 + ... + 729322.

It is an arithmetic number, because the mean of its divisors is an integer number (1415518720).

Almost surely, 2^20535824803 is an apocalyptic number.

20535824803 is a deficient number, since it is larger than the sum of its proper divisors (2112474717).

20535824803 is a wasteful number, since it uses less digits than its factorization.

20535824803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30058.

The product of its (nonzero) digits is 230400, while the sum is 40.

The spelling of 20535824803 in words is "twenty billion, five hundred thirty-five million, eight hundred twenty-four thousand, eight hundred three".