542256773 has 4 divisors (see below), whose sum is σ = 543150720. Its totient is φ = 541362828.

The previous prime is 542256721. The next prime is 542256839. The reversal of 542256773 is 377652245.

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.

It is a cyclic number.

It is not a de Polignac number, because 542256773 - 2⁶ = 542256709 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 542256773.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542856773) 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 3 ways as a sum of consecutive naturals, for example, 446063 + ... + 447276.

It is an arithmetic number, because the mean of its divisors is an integer number (135787680).

Almost surely, 2^542256773 is an apocalyptic number.

It is an amenable number.

542256773 is a deficient number, since it is larger than the sum of its proper divisors (893947).

542256773 is an equidigital number, since it uses as much as digits as its factorization.

542256773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893946.

The product of its digits is 352800, while the sum is 41.

The square root of 542256773 is about 23286.4074730303. The cubic root of 542256773 is about 815.4581202462.

The spelling of 542256773 in words is "five hundred forty-two million, two hundred fifty-six thousand, seven hundred seventy-three".