20732274503 has 4 divisors (see below), whose sum is σ = 21951820080. Its totient is φ = 19512728928.

The previous prime is 20732274499. The next prime is 20732274509. The reversal of 20732274503 is 30547223702.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 20732274503 - 2² = 20732274499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20732274509) 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, 609772763 + ... + 609772796.

It is an arithmetic number, because the mean of its divisors is an integer number (5487955020).

Almost surely, 2^20732274503 is an apocalyptic number.

20732274503 is a deficient number, since it is larger than the sum of its proper divisors (1219545577).

20732274503 is a wasteful number, since it uses less digits than its factorization.

20732274503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219545576.

The product of its (nonzero) digits is 70560, while the sum is 35.

The spelling of 20732274503 in words is "twenty billion, seven hundred thirty-two million, two hundred seventy-four thousand, five hundred three".