99555842 has 8 divisors (see below), whose sum is σ = 158118156. Its totient is φ = 46849792.

The previous prime is 99555821. The next prime is 99555851. The reversal of 99555842 is 24855599.

It can be written as a sum of positive squares in 2 ways, for example, as 94497841 + 5058001 = 9721^2 + 2249^2 .

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

It is a super-2 number, since 2×99555842² = 19822731352657928, which contains 22 as substring.

It is an unprimeable number.

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, 1464023 + ... + 1464090.

Almost surely, 2^99555842 is an apocalyptic number.

99555842 is a deficient number, since it is larger than the sum of its proper divisors (58562314).

99555842 is a wasteful number, since it uses less digits than its factorization.

99555842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2928132.

The product of its digits is 648000, while the sum is 47.

The square root of 99555842 is about 9977.7673855427. The cubic root of 99555842 is about 463.4706638216.

The spelling of 99555842 in words is "ninety-nine million, five hundred fifty-five thousand, eight hundred forty-two".