523942219 has 2 divisors, whose sum is σ = 523942220. Its totient is φ = 523942218.

The previous prime is 523942171. The next prime is 523942273. The reversal of 523942219 is 912249325.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 523942219 - 2¹³ = 523934027 is a prime.

It is a super-2 number, since 2×523942219² = 549030897701287922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (523942019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261971109 + 261971110.

It is an arithmetic number, because the mean of its divisors is an integer number (261971110).

Almost surely, 2^523942219 is an apocalyptic number.

523942219 is a deficient number, since it is larger than the sum of its proper divisors (1).

523942219 is an equidigital number, since it uses as much as digits as its factorization.

523942219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 37.

The square root of 523942219 is about 22889.7841623725. The cubic root of 523942219 is about 806.1721637576.

The spelling of 523942219 in words is "five hundred twenty-three million, nine hundred forty-two thousand, two hundred nineteen".