572023211 has 4 divisors (see below), whose sum is σ = 572472432. Its totient is φ = 571573992.

The previous prime is 572023189. The next prime is 572023241. The reversal of 572023211 is 112320275.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-572023211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (572023241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222695 + ... + 225248.

It is an arithmetic number, because the mean of its divisors is an integer number (143118108).

Almost surely, 2^572023211 is an apocalyptic number.

572023211 is a deficient number, since it is larger than the sum of its proper divisors (449221).

572023211 is a wasteful number, since it uses less digits than its factorization.

572023211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449220.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 572023211 is about 23917.0067316125. The cubic root of 572023211 is about 830.1142780667.

Adding to 572023211 its reverse (112320275), we get a palindrome (684343486).

The spelling of 572023211 in words is "five hundred seventy-two million, twenty-three thousand, two hundred eleven".