542542523 has 2 divisors, whose sum is σ = 542542524. Its totient is φ = 542542522.

The previous prime is 542542519. The next prime is 542542571. The reversal of 542542523 is 325245245.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 542542523 - 2² = 542542519 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 542542523.

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, 271271261 + 271271262.

It is an arithmetic number, because the mean of its divisors is an integer number (271271262).

Almost surely, 2^542542523 is an apocalyptic number.

542542523 is a deficient number, since it is larger than the sum of its proper divisors (1).

542542523 is an equidigital number, since it uses as much as digits as its factorization.

542542523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48000, while the sum is 32.

The square root of 542542523 is about 23292.5422184870. The cubic root of 542542523 is about 815.6013342184.

Adding to 542542523 its reverse (325245245), we get a palindrome (867787768).

The spelling of 542542523 in words is "five hundred forty-two million, five hundred forty-two thousand, five hundred twenty-three".