20502675233 has 4 divisors (see below), whose sum is σ = 20503875840. Its totient is φ = 20501474628.

The previous prime is 20502675143. The next prime is 20502675239. The reversal of 20502675233 is 33257620502.

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.

It is a cyclic number.

It is not a de Polignac number, because 20502675233 - 2⁸ = 20502674977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20502675193 and 20502675202.

It is not an unprimeable number, because it can be changed into a prime (20502675239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 574313 + ... + 608966.

It is an arithmetic number, because the mean of its divisors is an integer number (5125968960).

Almost surely, 2^20502675233 is an apocalyptic number.

It is an amenable number.

20502675233 is a deficient number, since it is larger than the sum of its proper divisors (1200607).

20502675233 is a wasteful number, since it uses less digits than its factorization.

20502675233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200606.

The product of its (nonzero) digits is 75600, while the sum is 35.

The spelling of 20502675233 in words is "twenty billion, five hundred two million, six hundred seventy-five thousand, two hundred thirty-three".