20504373 has 8 divisors (see below), whose sum is σ = 27403200. Its totient is φ = 13637568.

The previous prime is 20504353. The next prime is 20504377. The reversal of 20504373 is 37340502.

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

It is not a de Polignac number, because 20504373 - 2⁸ = 20504117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20504377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6468 + ... + 9101.

It is an arithmetic number, because the mean of its divisors is an integer number (3425400).

Almost surely, 2^20504373 is an apocalyptic number.

It is an amenable number.

20504373 is a deficient number, since it is larger than the sum of its proper divisors (6898827).

20504373 is a wasteful number, since it uses less digits than its factorization.

20504373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16011.

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 20504373 is about 4528.1754603814. The cubic root of 20504373 is about 273.7046429304.

Adding to 20504373 its reverse (37340502), we get a palindrome (57844875).

The spelling of 20504373 in words is "twenty million, five hundred four thousand, three hundred seventy-three".