542547587 has 4 divisors (see below), whose sum is σ = 542690016. Its totient is φ = 542405160.

The previous prime is 542547583. The next prime is 542547601. The reversal of 542547587 is 785745245.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 785745245 = 5 ⋅157149049.

It is a cyclic number.

It is not a de Polignac number, because 542547587 - 2² = 542547583 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542547581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65339 + ... + 73172.

It is an arithmetic number, because the mean of its divisors is an integer number (135672504).

Almost surely, 2^542547587 is an apocalyptic number.

542547587 is a deficient number, since it is larger than the sum of its proper divisors (142429).

542547587 is a wasteful number, since it uses less digits than its factorization.

542547587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142428.

The product of its digits is 1568000, while the sum is 47.

The square root of 542547587 is about 23292.6509225550. The cubic root of 542547587 is about 815.6038717720.

The spelling of 542547587 in words is "five hundred forty-two million, five hundred forty-seven thousand, five hundred eighty-seven".