99955442 has 4 divisors (see below), whose sum is σ = 149933166. Its totient is φ = 49977720.

The previous prime is 99955411. The next prime is 99955451. The reversal of 99955442 is 24455999.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 87628321 + 12327121 = 9361^2 + 3511^2 .

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24988859 + ... + 24988862.

Almost surely, 2^99955442 is an apocalyptic number.

99955442 is a deficient number, since it is larger than the sum of its proper divisors (49977724).

99955442 is a wasteful number, since it uses less digits than its factorization.

99955442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49977723.

The product of its digits is 583200, while the sum is 47.

The square root of 99955442 is about 9997.7718517678. The cubic root of 99955442 is about 464.0899331476.

The spelling of 99955442 in words is "ninety-nine million, nine hundred fifty-five thousand, four hundred forty-two".