542527 has 4 divisors (see below), whose sum is σ = 544896. Its totient is φ = 540160.

The previous prime is 542519. The next prime is 542533. The reversal of 542527 is 725245.

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 542527 - 2³ = 542519 is a prime.

It is a d-powerful number, because it can be written as 5⁷ + 4⁶ + 5⁸ + 2¹² + 2¹⁶ + 7² .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542537) 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, 799 + ... + 1312.

It is an arithmetic number, because the mean of its divisors is an integer number (136224).

2⁵⁴²⁵²⁷ is an apocalyptic number.

542527 is a deficient number, since it is larger than the sum of its proper divisors (2369).

542527 is a wasteful number, since it uses less digits than its factorization.

542527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2368.

The product of its digits is 2800, while the sum is 25.

The square root of 542527 is about 736.5643216991. The cubic root of 542527 is about 81.5593555596.

The spelling of 542527 in words is "five hundred forty-two thousand, five hundred twenty-seven".