20549094502 has 4 divisors (see below), whose sum is σ = 30823641756. Its totient is φ = 10274547250.

The previous prime is 20549094499. The next prime is 20549094509.

20549094502 is nontrivially palindromic in base 10.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20549094509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5137273624 + ... + 5137273627.

It is an arithmetic number, because the mean of its divisors is an integer number (7705910439).

Almost surely, 2^20549094502 is an apocalyptic number.

20549094502 is a deficient number, since it is larger than the sum of its proper divisors (10274547254).

20549094502 is a wasteful number, since it uses less digits than its factorization.

20549094502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10274547253.

The product of its (nonzero) digits is 129600, while the sum is 40.

It can be divided in two parts, 205490 and 94502, that added together give a palindrome (299992).

The spelling of 20549094502 in words is "twenty billion, five hundred forty-nine million, ninety-four thousand, five hundred two".