20573606 has 4 divisors (see below), whose sum is σ = 30860412. Its totient is φ = 10286802.

The previous prime is 20573573. The next prime is 20573627. The reversal of 20573606 is 60637502.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5143400 + ... + 5143403.

It is an arithmetic number, because the mean of its divisors is an integer number (7715103).

Almost surely, 2^20573606 is an apocalyptic number.

20573606 is a deficient number, since it is larger than the sum of its proper divisors (10286806).

20573606 is a wasteful number, since it uses less digits than its factorization.

20573606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10286805.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 20573606 is about 4535.8137086966. The cubic root of 20573606 is about 274.0123513710.

The spelling of 20573606 in words is "twenty million, five hundred seventy-three thousand, six hundred six".