542322561 has 32 divisors (see below), whose sum is σ = 798336000. Its totient is φ = 324751680.

The previous prime is 542322551. The next prime is 542322607. The reversal of 542322561 is 165223245.

It is not a de Polignac number, because 542322561 - 2⁷ = 542322433 is a prime.

It is a super-2 number, since 2×542322561² = 588227520339197442, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (542322551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1766370 + ... + 1766676.

It is an arithmetic number, because the mean of its divisors is an integer number (24948000).

Almost surely, 2^542322561 is an apocalyptic number.

It is an amenable number.

542322561 is a deficient number, since it is larger than the sum of its proper divisors (256013439).

542322561 is a wasteful number, since it uses less digits than its factorization.

542322561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789.

The product of its digits is 14400, while the sum is 30.

The square root of 542322561 is about 23287.8200139043. The cubic root of 542322561 is about 815.4910967449.

The spelling of 542322561 in words is "five hundred forty-two million, three hundred twenty-two thousand, five hundred sixty-one".