542551673 has 4 divisors (see below), whose sum is σ = 542711808. Its totient is φ = 542391540.

The previous prime is 542551637. The next prime is 542551679. The reversal of 542551673 is 376155245.

It is a happy number.

542551673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 376155245 = 5 ⋅75231049.

It is a cyclic number.

It is not a de Polignac number, because 542551673 - 2⁸ = 542551417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (542551679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74873 + ... + 81798.

It is an arithmetic number, because the mean of its divisors is an integer number (135677952).

Almost surely, 2^542551673 is an apocalyptic number.

It is an amenable number.

542551673 is a deficient number, since it is larger than the sum of its proper divisors (160135).

542551673 is a wasteful number, since it uses less digits than its factorization.

542551673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160134.

The product of its digits is 126000, while the sum is 38.

The square root of 542551673 is about 23292.7386324580. The cubic root of 542551673 is about 815.6059192416.

The spelling of 542551673 in words is "five hundred forty-two million, five hundred fifty-one thousand, six hundred seventy-three".