542647523 has 8 divisors (see below), whose sum is σ = 592259520. Its totient is φ = 493082280.

The previous prime is 542647451. The next prime is 542647537. The reversal of 542647523 is 325746245.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 542647523 - 2¹² = 542643427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542647223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15308 + ... + 36326.

It is an arithmetic number, because the mean of its divisors is an integer number (74032440).

Almost surely, 2^542647523 is an apocalyptic number.

542647523 is a deficient number, since it is larger than the sum of its proper divisors (49611997).

542647523 is a wasteful number, since it uses less digits than its factorization.

542647523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23377.

The product of its digits is 201600, while the sum is 38.

The square root of 542647523 is about 23294.7960497618. The cubic root of 542647523 is about 815.6539461412.

The spelling of 542647523 in words is "five hundred forty-two million, six hundred forty-seven thousand, five hundred twenty-three".