542171663 has 8 divisors (see below), whose sum is σ = 617175936. Its totient is φ = 471453400.

The previous prime is 542171653. The next prime is 542171671. The reversal of 542171663 is 366171245.

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

It is not a de Polignac number, because 542171663 - 2¹² = 542167567 is a prime.

It is a super-2 number, since 2×542171663² = 587900224320371138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542171603) 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 7 ways as a sum of consecutive naturals, for example, 1071233 + ... + 1071738.

It is an arithmetic number, because the mean of its divisors is an integer number (77146992).

Almost surely, 2^542171663 is an apocalyptic number.

542171663 is a deficient number, since it is larger than the sum of its proper divisors (75004273).

542171663 is a wasteful number, since it uses less digits than its factorization.

542171663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2143005.

The product of its digits is 30240, while the sum is 35.

The square root of 542171663 is about 23284.5799403811. The cubic root of 542171663 is about 815.4154545599.

The spelling of 542171663 in words is "five hundred forty-two million, one hundred seventy-one thousand, six hundred sixty-three".