542525239 has 2 divisors, whose sum is σ = 542525240. Its totient is φ = 542525238.

The previous prime is 542525231. The next prime is 542525261. The reversal of 542525239 is 932525245.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 542525239 - 2³ = 542525231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 542525198 and 542525207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542525231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271262619 + 271262620.

It is an arithmetic number, because the mean of its divisors is an integer number (271262620).

Almost surely, 2^542525239 is an apocalyptic number.

542525239 is a deficient number, since it is larger than the sum of its proper divisors (1).

542525239 is an equidigital number, since it uses as much as digits as its factorization.

542525239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108000, while the sum is 37.

The square root of 542525239 is about 23292.1711954897. The cubic root of 542525239 is about 815.5926731442.

The spelling of 542525239 in words is "five hundred forty-two million, five hundred twenty-five thousand, two hundred thirty-nine".