99542518 has 4 divisors (see below), whose sum is σ = 149313780. Its totient is φ = 49771258.

The previous prime is 99542507. The next prime is 99542557. The reversal of 99542518 is 81524599.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81524599 = 13 ⋅6271123.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24885628 + ... + 24885631.

It is an arithmetic number, because the mean of its divisors is an integer number (37328445).

Almost surely, 2^99542518 is an apocalyptic number.

99542518 is a deficient number, since it is larger than the sum of its proper divisors (49771262).

99542518 is a wasteful number, since it uses less digits than its factorization.

99542518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49771261.

The product of its digits is 129600, while the sum is 43.

The square root of 99542518 is about 9977.0996787644. The cubic root of 99542518 is about 463.4499867874.

The spelling of 99542518 in words is "ninety-nine million, five hundred forty-two thousand, five hundred eighteen".