542536 has 16 divisors (see below), whose sum is σ = 1032300. Its totient is φ = 267264.

The previous prime is 542533. The next prime is 542537. The reversal of 542536 is 635245.

542536 is nontrivially palindromic in base 16.

It can be written as a sum of positive squares in 2 ways, for example, as 498436 + 44100 = 706^2 + 210^2 .

It is a super-2 number, since 2×542536² = 588690622592, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 542536.

It is not an unprimeable number, because it can be changed into a prime (542533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120 + ... + 1048.

2⁵⁴²⁵³⁶ is an apocalyptic number.

It is an amenable number.

542536 is a deficient number, since it is larger than the sum of its proper divisors (489764).

542536 is a wasteful number, since it uses less digits than its factorization.

542536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008 (or 1004 counting only the distinct ones).

The product of its digits is 3600, while the sum is 25.

The square root of 542536 is about 736.5704311198. The cubic root of 542536 is about 81.5598065541.

The spelling of 542536 in words is "five hundred forty-two thousand, five hundred thirty-six".