542436523 has 2 divisors, whose sum is σ = 542436524. Its totient is φ = 542436522.

The previous prime is 542436487. The next prime is 542436533. The reversal of 542436523 is 325634245.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 542436523 - 2¹³ = 542428331 is a prime.

It is not a weakly prime, because it can be changed into another prime (542436533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271218261 + 271218262.

It is an arithmetic number, because the mean of its divisors is an integer number (271218262).

Almost surely, 2^542436523 is an apocalyptic number.

542436523 is a deficient number, since it is larger than the sum of its proper divisors (1).

542436523 is an equidigital number, since it uses as much as digits as its factorization.

542436523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 34.

The square root of 542436523 is about 23290.2667009204. The cubic root of 542436523 is about 815.5482143438.

The spelling of 542436523 in words is "five hundred forty-two million, four hundred thirty-six thousand, five hundred twenty-three".