542542519 has 2 divisors, whose sum is σ = 542542520. Its totient is φ = 542542518.

The previous prime is 542542513. The next prime is 542542523. The reversal of 542542519 is 915245245.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 542542519 - 2¹⁹ = 542018231 is a prime.

It is a super-2 number, since 2×542542519² = 588704769845730722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542542513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271271259 + 271271260.

It is an arithmetic number, because the mean of its divisors is an integer number (271271260).

Almost surely, 2^542542519 is an apocalyptic number.

542542519 is a deficient number, since it is larger than the sum of its proper divisors (1).

542542519 is an equidigital number, since it uses as much as digits as its factorization.

542542519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72000, while the sum is 37.

The square root of 542542519 is about 23292.5421326226. The cubic root of 542542519 is about 815.6013322140.

The spelling of 542542519 in words is "five hundred forty-two million, five hundred forty-two thousand, five hundred nineteen".