571225901 has 2 divisors, whose sum is σ = 571225902. Its totient is φ = 571225900.

The previous prime is 571225877. The next prime is 571225909. The reversal of 571225901 is 109522175.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 382163401 + 189062500 = 19549^2 + 13750^2 .

It is a cyclic number.

It is not a de Polignac number, because 571225901 - 2¹⁰ = 571224877 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (571225909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285612950 + 285612951.

It is an arithmetic number, because the mean of its divisors is an integer number (285612951).

Almost surely, 2^571225901 is an apocalyptic number.

It is an amenable number.

571225901 is a deficient number, since it is larger than the sum of its proper divisors (1).

571225901 is an equidigital number, since it uses as much as digits as its factorization.

571225901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 32.

The square root of 571225901 is about 23900.3326545887. The cubic root of 571225901 is about 829.7284160076.

It can be divided in two parts, 5712 and 25901, that added together give a palindrome (31613).

The spelling of 571225901 in words is "five hundred seventy-one million, two hundred twenty-five thousand, nine hundred one".