20572162 has 16 divisors (see below), whose sum is σ = 33861240. Its totient is φ = 9315072.

The previous prime is 20572151. The next prime is 20572163. The reversal of 20572162 is 26127502.

It can be written as a sum of positive squares in 4 ways, for example, as 19105641 + 1466521 = 4371^2 + 1211^2 .

It is not an unprimeable number, because it can be changed into a prime (20572163) 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, 6087 + ... + 8842.

Almost surely, 2^20572162 is an apocalyptic number.

20572162 is a deficient number, since it is larger than the sum of its proper divisors (13289078).

20572162 is a wasteful number, since it uses less digits than its factorization.

20572162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14997.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 20572162 is about 4535.6545282903. The cubic root of 20572162 is about 274.0059405180.

Adding to 20572162 its reverse (26127502), we get a palindrome (46699664).

The spelling of 20572162 in words is "twenty million, five hundred seventy-two thousand, one hundred sixty-two".