542646523 has 2 divisors, whose sum is σ = 542646524. Its totient is φ = 542646522.

The previous prime is 542646509. The next prime is 542646529. The reversal of 542646523 is 325646245.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 542646523 - 2⁵ = 542646491 is a prime.

It is not a weakly prime, because it can be changed into another prime (542646529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271323261 + 271323262.

It is an arithmetic number, because the mean of its divisors is an integer number (271323262).

Almost surely, 2^542646523 is an apocalyptic number.

542646523 is a deficient number, since it is larger than the sum of its proper divisors (1).

542646523 is an equidigital number, since it uses as much as digits as its factorization.

542646523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 37.

The square root of 542646523 is about 23294.7745857306. The cubic root of 542646523 is about 815.6534451073.

It can be divided in two parts, 542646 and 523, that added together give a square (543169 = 737²).

The spelling of 542646523 in words is "five hundred forty-two million, six hundred forty-six thousand, five hundred twenty-three".