542664899 has 4 divisors (see below), whose sum is σ = 620188464. Its totient is φ = 465141336.

The previous prime is 542664887. The next prime is 542664911. The reversal of 542664899 is 998466245.

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

It is an interprime number because it is at equal distance from previous prime (542664887) and next prime (542664911).

It is a cyclic number.

It is not a de Polignac number, because 542664899 - 2¹² = 542660803 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 542664899.

It is not an unprimeable number, because it can be changed into a prime (542664839) 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, 38761772 + ... + 38761785.

It is an arithmetic number, because the mean of its divisors is an integer number (155047116).

Almost surely, 2^542664899 is an apocalyptic number.

542664899 is a deficient number, since it is larger than the sum of its proper divisors (77523565).

542664899 is an equidigital number, since it uses as much as digits as its factorization.

542664899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77523564.

The product of its digits is 3732480, while the sum is 53.

The square root of 542664899 is about 23295.1690056114. The cubic root of 542664899 is about 815.6626520083.

The spelling of 542664899 in words is "five hundred forty-two million, six hundred sixty-four thousand, eight hundred ninety-nine".