20463573 has 8 divisors (see below), whose sum is σ = 29383648. Its totient is φ = 12592944.

The previous prime is 20463559. The next prime is 20463577. The reversal of 20463573 is 37536402.

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

It is not a de Polignac number, because 20463573 - 2⁴ = 20463557 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20463573.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20463577) 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, 262315 + ... + 262392.

It is an arithmetic number, because the mean of its divisors is an integer number (3672956).

Almost surely, 2^20463573 is an apocalyptic number.

It is an amenable number.

20463573 is a deficient number, since it is larger than the sum of its proper divisors (8920075).

20463573 is a wasteful number, since it uses less digits than its factorization.

20463573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524723.

The product of its (nonzero) digits is 15120, while the sum is 30.

The square root of 20463573 is about 4523.6680912728. The cubic root of 20463573 is about 273.5229814462.

Adding to 20463573 its reverse (37536402), we get a palindrome (57999975).

The spelling of 20463573 in words is "twenty million, four hundred sixty-three thousand, five hundred seventy-three".