542325281 has 4 divisors (see below), whose sum is σ = 544283412. Its totient is φ = 540367152.

The previous prime is 542325247. The next prime is 542325337. The reversal of 542325281 is 182523245.

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 86118400 + 456206881 = 9280^2 + 21359^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542325281 is a prime.

It is a super-2 number, since 2×542325281² = 588233420823457922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542325241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 978650 + ... + 979203.

It is an arithmetic number, because the mean of its divisors is an integer number (136070853).

Almost surely, 2^542325281 is an apocalyptic number.

It is an amenable number.

542325281 is a deficient number, since it is larger than the sum of its proper divisors (1958131).

542325281 is a wasteful number, since it uses less digits than its factorization.

542325281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1958130.

The product of its digits is 19200, while the sum is 32.

The square root of 542325281 is about 23287.8784134579. The cubic root of 542325281 is about 815.4924600984.

The spelling of 542325281 in words is "five hundred forty-two million, three hundred twenty-five thousand, two hundred eighty-one".