542886557 has 4 divisors (see below), whose sum is σ = 543015516. Its totient is φ = 542757600.

The previous prime is 542886511. The next prime is 542886581. The reversal of 542886557 is 755688245.

542886557 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.

It can be written as a sum of positive squares in 2 ways, for example, as 439782841 + 103103716 = 20971^2 + 10154^2 .

It is a cyclic number.

It is not a de Polignac number, because 542886557 - 2¹⁰ = 542885533 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 (542816557) 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, 57944 + ... + 66657.

It is an arithmetic number, because the mean of its divisors is an integer number (135753879).

Almost surely, 2^542886557 is an apocalyptic number.

It is an amenable number.

542886557 is a deficient number, since it is larger than the sum of its proper divisors (128959).

542886557 is a wasteful number, since it uses less digits than its factorization.

542886557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128958.

The product of its digits is 2688000, while the sum is 50.

The square root of 542886557 is about 23299.9261157627. The cubic root of 542886557 is about 815.7736926288.

The spelling of 542886557 in words is "five hundred forty-two million, eight hundred eighty-six thousand, five hundred fifty-seven".