99558542 has 4 divisors (see below), whose sum is σ = 149337816. Its totient is φ = 49779270.

The previous prime is 99558541. The next prime is 99558587. The reversal of 99558542 is 24585599.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24585599 = 617 ⋅39847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99558541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24889634 + ... + 24889637.

It is an arithmetic number, because the mean of its divisors is an integer number (37334454).

Almost surely, 2^99558542 is an apocalyptic number.

99558542 is a deficient number, since it is larger than the sum of its proper divisors (49779274).

99558542 is a wasteful number, since it uses less digits than its factorization.

99558542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49779273.

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

The square root of 99558542 is about 9977.9026854344. The cubic root of 99558542 is about 463.4748536292.

The spelling of 99558542 in words is "ninety-nine million, five hundred fifty-eight thousand, five hundred forty-two".