542587 has 2 divisors, whose sum is σ = 542588. Its totient is φ = 542586.

The previous prime is 542579. The next prime is 542599. The reversal of 542587 is 785245.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 542587 - 2³ = 542579 is a prime.

It is not a weakly prime, because it can be changed into another prime (542537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271293 + 271294.

It is an arithmetic number, because the mean of its divisors is an integer number (271294).

2⁵⁴²⁵⁸⁷ is an apocalyptic number.

542587 is a deficient number, since it is larger than the sum of its proper divisors (1).

542587 is an equidigital number, since it uses as much as digits as its factorization.

542587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11200, while the sum is 31.

The square root of 542587 is about 736.6050502135. The cubic root of 542587 is about 81.5623620956.

The spelling of 542587 in words is "five hundred forty-two thousand, five hundred eighty-seven".