20572 has 12 divisors (see below), whose sum is σ = 37240. Its totient is φ = 9936.

The previous prime is 20563. The next prime is 20593. The reversal of 20572 is 27502.

It is a happy number.

It is a d-powerful number, because it can be written as 2⁷ + 0 + 5⁵ + 7⁵ + 2⁹ .

It is a nialpdrome in base 12.

It is a congruent number.

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, 79 + ... + 217.

2²⁰⁵⁷² is an apocalyptic number.

It is an amenable number.

20572 is a deficient number, since it is larger than the sum of its proper divisors (16668).

20572 is a wasteful number, since it uses less digits than its factorization.

20572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 16.

The square root of 20572 is about 143.4294251540. The cubic root of 20572 is about 27.4005221276.

It can be divided in two parts, 2057 and 2, that multiplied together give a palindrome (4114).

The spelling of 20572 in words is "twenty thousand, five hundred seventy-two".