524222561 has 2 divisors, whose sum is σ = 524222562. Its totient is φ = 524222560.

The previous prime is 524222527. The next prime is 524222609. The reversal of 524222561 is 165222425.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 315275536 + 208947025 = 17756^2 + 14455^2 .

It is a cyclic number.

It is not a de Polignac number, because 524222561 - 2⁶ = 524222497 is a prime.

It is a super-2 number, since 2×524222561² = 549618586922797442, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (524242561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262111280 + 262111281.

It is an arithmetic number, because the mean of its divisors is an integer number (262111281).

Almost surely, 2^524222561 is an apocalyptic number.

It is an amenable number.

524222561 is a deficient number, since it is larger than the sum of its proper divisors (1).

524222561 is an equidigital number, since it uses as much as digits as its factorization.

524222561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9600, while the sum is 29.

The square root of 524222561 is about 22895.9070796507. The cubic root of 524222561 is about 806.3159223705.

Adding to 524222561 its reverse (165222425), we get a palindrome (689444986).

The spelling of 524222561 in words is "five hundred twenty-four million, two hundred twenty-two thousand, five hundred sixty-one".