542253437185 has 4 divisors (see below), whose sum is σ = 650704124628. Its totient is φ = 433802749744.

The previous prime is 542253437179. The next prime is 542253437197. The reversal of 542253437185 is 581734352245.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 350889184881 + 191364252304 = 592359^2 + 437452^2 .

It is a cyclic number.

It is not a de Polignac number, because 542253437185 - 2¹⁹ = 542252912897 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54225343714 + ... + 54225343723.

It is an arithmetic number, because the mean of its divisors is an integer number (162676031157).

Almost surely, 2^542253437185 is an apocalyptic number.

It is an amenable number.

542253437185 is a deficient number, since it is larger than the sum of its proper divisors (108450687443).

542253437185 is a wasteful number, since it uses less digits than its factorization.

542253437185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108450687442.

The product of its digits is 4032000, while the sum is 49.

The spelling of 542253437185 in words is "five hundred forty-two billion, two hundred fifty-three million, four hundred thirty-seven thousand, one hundred eighty-five".