542582321 has 2 divisors, whose sum is σ = 542582322. Its totient is φ = 542582320.

The previous prime is 542582317. The next prime is 542582323. The reversal of 542582321 is 123285245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 536431921 + 6150400 = 23161^2 + 2480^2 .

It is a cyclic number.

It is not a de Polignac number, because 542582321 - 2² = 542582317 is a prime.

It is a Sophie Germain prime.

Together with 542582323, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (542582323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271291160 + 271291161.

It is an arithmetic number, because the mean of its divisors is an integer number (271291161).

Almost surely, 2^542582321 is an apocalyptic number.

It is an amenable number.

542582321 is a deficient number, since it is larger than the sum of its proper divisors (1).

542582321 is an equidigital number, since it uses as much as digits as its factorization.

542582321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19200, while the sum is 32.

The square root of 542582321 is about 23293.3965105993. The cubic root of 542582321 is about 815.6212764391.

The spelling of 542582321 in words is "five hundred forty-two million, five hundred eighty-two thousand, three hundred twenty-one".