542513233 has 4 divisors (see below), whose sum is σ = 544365108. Its totient is φ = 540661360.

The previous prime is 542513227. The next prime is 542513243. The reversal of 542513233 is 332315245.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 332315245 = 5 ⋅66463049.

It can be written as a sum of positive squares in 2 ways, for example, as 444661569 + 97851664 = 21087^2 + 9892^2 .

It is a cyclic number.

It is not a de Polignac number, because 542513233 - 2²¹ = 540416081 is a prime.

It is a super-2 number, since 2×542513233² = 588641215960224578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542513243) 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, 925498 + ... + 926083.

It is an arithmetic number, because the mean of its divisors is an integer number (136091277).

Almost surely, 2^542513233 is an apocalyptic number.

It is an amenable number.

542513233 is a deficient number, since it is larger than the sum of its proper divisors (1851875).

542513233 is a wasteful number, since it uses less digits than its factorization.

542513233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851874.

The product of its digits is 10800, while the sum is 28.

The square root of 542513233 is about 23291.9134679828. The cubic root of 542513233 is about 815.5866567864.

Adding to 542513233 its reverse (332315245), we get a palindrome (874828478).

The spelling of 542513233 in words is "five hundred forty-two million, five hundred thirteen thousand, two hundred thirty-three".