542207489 has 2 divisors, whose sum is σ = 542207490. Its totient is φ = 542207488.

The previous prime is 542207443. The next prime is 542207513. The reversal of 542207489 is 984702245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 478734400 + 63473089 = 21880^2 + 7967^2 .

It is a cyclic number.

It is not a de Polignac number, because 542207489 - 2⁸ = 542207233 is a prime.

It is a super-2 number, since 2×542207489² = 587977922255370242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (542207089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271103744 + 271103745.

It is an arithmetic number, because the mean of its divisors is an integer number (271103745).

Almost surely, 2^542207489 is an apocalyptic number.

It is an amenable number.

542207489 is a deficient number, since it is larger than the sum of its proper divisors (1).

542207489 is an equidigital number, since it uses as much as digits as its factorization.

542207489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 542207489 is about 23285.3492350877. The cubic root of 542207489 is about 815.4334146961.

The spelling of 542207489 in words is "five hundred forty-two million, two hundred seven thousand, four hundred eighty-nine".