542817265 has 4 divisors (see below), whose sum is σ = 651380724. Its totient is φ = 434253808.

The previous prime is 542817263. The next prime is 542817283. The reversal of 542817265 is 562718245.

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 390615696 + 152201569 = 19764^2 + 12337^2 .

It is a cyclic number.

It is not a de Polignac number, because 542817265 - 2¹ = 542817263 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542817263) 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, 54281722 + ... + 54281731.

It is an arithmetic number, because the mean of its divisors is an integer number (162845181).

Almost surely, 2^542817265 is an apocalyptic number.

It is an amenable number.

542817265 is a deficient number, since it is larger than the sum of its proper divisors (108563459).

542817265 is a wasteful number, since it uses less digits than its factorization.

542817265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108563458.

The product of its digits is 134400, while the sum is 40.

The square root of 542817265 is about 23298.4391108074. The cubic root of 542817265 is about 815.7389837226.

The spelling of 542817265 in words is "five hundred forty-two million, eight hundred seventeen thousand, two hundred sixty-five".