542475623 has 4 divisors (see below), whose sum is σ = 551368728. Its totient is φ = 533582520.

The previous prime is 542475613. The next prime is 542475667. The reversal of 542475623 is 326574245.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 542475623 - 2¹⁰ = 542474599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542475613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4446461 + ... + 4446582.

It is an arithmetic number, because the mean of its divisors is an integer number (137842182).

Almost surely, 2^542475623 is an apocalyptic number.

542475623 is a deficient number, since it is larger than the sum of its proper divisors (8893105).

542475623 is an equidigital number, since it uses as much as digits as its factorization.

542475623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8893104.

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

The square root of 542475623 is about 23291.1060922404. The cubic root of 542475623 is about 815.5678093671.

The spelling of 542475623 in words is "five hundred forty-two million, four hundred seventy-five thousand, six hundred twenty-three".