99954542 has 4 divisors (see below), whose sum is σ = 149931816. Its totient is φ = 49977270.

The previous prime is 99954541. The next prime is 99954551. The reversal of 99954542 is 24545999.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99954541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24988634 + ... + 24988637.

It is an arithmetic number, because the mean of its divisors is an integer number (37482954).

Almost surely, 2^99954542 is an apocalyptic number.

99954542 is a deficient number, since it is larger than the sum of its proper divisors (49977274).

99954542 is a wasteful number, since it uses less digits than its factorization.

99954542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49977273.

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

The square root of 99954542 is about 9997.7268416376. The cubic root of 99954542 is about 464.0885402529.

The spelling of 99954542 in words is "ninety-nine million, nine hundred fifty-four thousand, five hundred forty-two".