542080817 has 2 divisors, whose sum is σ = 542080818. Its totient is φ = 542080816.

The previous prime is 542080801. The next prime is 542080841. The reversal of 542080817 is 718080245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 346108816 + 195972001 = 18604^2 + 13999^2 .

It is a cyclic number.

It is not a de Polignac number, because 542080817 - 2⁴ = 542080801 is a prime.

It is a super-2 number, since 2×542080817² = 587703224318774978, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (542080867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271040408 + 271040409.

It is an arithmetic number, because the mean of its divisors is an integer number (271040409).

Almost surely, 2^542080817 is an apocalyptic number.

It is an amenable number.

542080817 is a deficient number, since it is larger than the sum of its proper divisors (1).

542080817 is an equidigital number, since it uses as much as digits as its factorization.

542080817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 542080817 is about 23282.6290826444. The cubic root of 542080817 is about 815.3699084871.

The spelling of 542080817 in words is "five hundred forty-two million, eighty thousand, eight hundred seventeen".