572454221 has 2 divisors, whose sum is σ = 572454222. Its totient is φ = 572454220.

The previous prime is 572454203. The next prime is 572454241. The reversal of 572454221 is 122454275.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 492351721 + 80102500 = 22189^2 + 8950^2 .

It is a cyclic number.

It is not a de Polignac number, because 572454221 - 2²² = 568259917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (572454241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 286227110 + 286227111.

It is an arithmetic number, because the mean of its divisors is an integer number (286227111).

Almost surely, 2^572454221 is an apocalyptic number.

It is an amenable number.

572454221 is a deficient number, since it is larger than the sum of its proper divisors (1).

572454221 is an equidigital number, since it uses as much as digits as its factorization.

572454221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22400, while the sum is 32.

The square root of 572454221 is about 23926.0155688322. The cubic root of 572454221 is about 830.3227181692.

The spelling of 572454221 in words is "five hundred seventy-two million, four hundred fifty-four thousand, two hundred twenty-one".