542561351 has 4 divisors (see below), whose sum is σ = 545592600. Its totient is φ = 539530104.

The previous prime is 542561317. The next prime is 542561363. The reversal of 542561351 is 153165245.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 542561351 - 2¹⁰ = 542560327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542561381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1515356 + ... + 1515713.

It is an arithmetic number, because the mean of its divisors is an integer number (136398150).

Almost surely, 2^542561351 is an apocalyptic number.

542561351 is a deficient number, since it is larger than the sum of its proper divisors (3031249).

542561351 is a wasteful number, since it uses less digits than its factorization.

542561351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3031248.

The product of its digits is 18000, while the sum is 32.

The square root of 542561351 is about 23292.9463786787. The cubic root of 542561351 is about 815.6107687872.

The spelling of 542561351 in words is "five hundred forty-two million, five hundred sixty-one thousand, three hundred fifty-one".