99975042 has 12 divisors (see below), whose sum is σ = 216612630. Its totient is φ = 33325008.

The previous prime is 99975041. The next prime is 99975047. The reversal of 99975042 is 24057999.

It can be written as a sum of positive squares in only one way, i.e., 73256481 + 26718561 = 8559^2 + 5169^2 .

It is not an unprimeable number, because it can be changed into a prime (99975041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2777067 + ... + 2777102.

Almost surely, 2^99975042 is an apocalyptic number.

99975042 is an abundant number, since it is smaller than the sum of its proper divisors (116637588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99975042 is a wasteful number, since it uses less digits than its factorization.

99975042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5554177 (or 5554174 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 99975042 is about 9998.7520221276. The cubic root of 99975042 is about 464.1202652236.

The spelling of 99975042 in words is "ninety-nine million, nine hundred seventy-five thousand, forty-two".