542111511 has 16 divisors (see below), whose sum is σ = 732372480. Its totient is φ = 356657280.

The previous prime is 542111497. The next prime is 542111513. The reversal of 542111511 is 115111245.

It is not a de Polignac number, because 542111511 - 2²² = 537917207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542111513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77676 + ... + 84366.

It is an arithmetic number, because the mean of its divisors is an integer number (45773280).

Almost surely, 2^542111511 is an apocalyptic number.

542111511 is a deficient number, since it is larger than the sum of its proper divisors (190260969).

542111511 is a wasteful number, since it uses less digits than its factorization.

542111511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7046.

The product of its digits is 200, while the sum is 21.

The square root of 542111511 is about 23283.2882342679. The cubic root of 542111511 is about 815.3852976387.

Adding to 542111511 its reverse (115111245), we get a palindrome (657222756).

The spelling of 542111511 in words is "five hundred forty-two million, one hundred eleven thousand, five hundred eleven".