542578811 has 4 divisors (see below), whose sum is σ = 542813712. Its totient is φ = 542343912.

The previous prime is 542578807. The next prime is 542578819. The reversal of 542578811 is 118875245.

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 542578811 - 2² = 542578807 is a prime.

It is a super-3 number, since 3×542578811³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542578819) 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, 113951 + ... + 118616.

It is an arithmetic number, because the mean of its divisors is an integer number (135703428).

Almost surely, 2^542578811 is an apocalyptic number.

542578811 is a deficient number, since it is larger than the sum of its proper divisors (234901).

542578811 is a wasteful number, since it uses less digits than its factorization.

542578811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234900.

The product of its digits is 89600, while the sum is 41.

The square root of 542578811 is about 23293.3211672359. The cubic root of 542578811 is about 815.6195176665.

The spelling of 542578811 in words is "five hundred forty-two million, five hundred seventy-eight thousand, eight hundred eleven".