542517265 has 8 divisors (see below), whose sum is σ = 651200040. Its totient is φ = 433894272.

The previous prime is 542517233. The next prime is 542517281. The reversal of 542517265 is 562715245.

It is a Cunningham number, because it is equal to 23292²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 163942416 + 378574849 = 12804^2 + 19457^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 542517265 - 2⁵ = 542517233 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8317 + ... + 33973.

It is an arithmetic number, because the mean of its divisors is an integer number (81400005).

Almost surely, 2^542517265 is an apocalyptic number.

It is an amenable number.

542517265 is a deficient number, since it is larger than the sum of its proper divisors (108682775).

542517265 is a wasteful number, since it uses less digits than its factorization.

542517265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29891.

The product of its digits is 84000, while the sum is 37.

The square root of 542517265 is about 23292.0000214666. Note that the first 4 decimals coincide. The cubic root of 542517265 is about 815.5886772822.

It can be divided in two parts, 54251 and 7265, that added together give a palindrome (61516).

The spelling of 542517265 in words is "five hundred forty-two million, five hundred seventeen thousand, two hundred sixty-five".