20553282 has 12 divisors (see below), whose sum is σ = 44532150. Its totient is φ = 6851088.

The previous prime is 20553263. The next prime is 20553287. The reversal of 20553282 is 28235502.

It can be written as a sum of positive squares in only one way, i.e., 10949481 + 9603801 = 3309^2 + 3099^2 .

It is not an unprimeable number, because it can be changed into a prime (20553287) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 570907 + ... + 570942.

Almost surely, 2^20553282 is an apocalyptic number.

20553282 is an abundant number, since it is smaller than the sum of its proper divisors (23978868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20553282 is a wasteful number, since it uses less digits than its factorization.

20553282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141857 (or 1141854 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 20553282 is about 4533.5727632850. The cubic root of 20553282 is about 273.9220923298.

Adding to 20553282 its reverse (28235502), we get a palindrome (48788784).

The spelling of 20553282 in words is "twenty million, five hundred fifty-three thousand, two hundred eighty-two".