20550562 has 8 divisors (see below), whose sum is σ = 31481856. Its totient is φ = 10056612.

The previous prime is 20550547. The next prime is 20550587. The reversal of 20550562 is 26505502.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109218 + ... + 109405.

It is an arithmetic number, because the mean of its divisors is an integer number (3935232).

Almost surely, 2^20550562 is an apocalyptic number.

20550562 is a deficient number, since it is larger than the sum of its proper divisors (10931294).

20550562 is a wasteful number, since it uses less digits than its factorization.

20550562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218672.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 20550562 is about 4533.2727692033. The cubic root of 20550562 is about 273.9100082750.

It can be divided in two parts, 20550 and 562, that added together give a palindrome (21112).

The spelling of 20550562 in words is "twenty million, five hundred fifty thousand, five hundred sixty-two".