542201509 has 2 divisors, whose sum is σ = 542201510. Its totient is φ = 542201508.

The previous prime is 542201497. The next prime is 542201521. The reversal of 542201509 is 905102245.

It is a balanced prime because it is at equal distance from previous prime (542201497) and next prime (542201521).

It can be written as a sum of positive squares in only one way, i.e., 517699009 + 24502500 = 22753^2 + 4950^2 .

It is a cyclic number.

It is not a de Polignac number, because 542201509 - 2¹¹ = 542199461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542201909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271100754 + 271100755.

It is an arithmetic number, because the mean of its divisors is an integer number (271100755).

Almost surely, 2^542201509 is an apocalyptic number.

It is an amenable number.

542201509 is a deficient number, since it is larger than the sum of its proper divisors (1).

542201509 is an equidigital number, since it uses as much as digits as its factorization.

542201509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 542201509 is about 23285.2208278126. The cubic root of 542201509 is about 815.4304168832.

The spelling of 542201509 in words is "five hundred forty-two million, two hundred one thousand, five hundred nine".