9942055249 has 16 divisors (see below), whose sum is σ = 11568528000. Its totient is φ = 8367467904.

The previous prime is 9942055219. The next prime is 9942055259. The reversal of 9942055249 is 9425502499.

It is a cyclic number.

It is not a de Polignac number, because 9942055249 - 2⁹ = 9942054737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9942055219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 348477 + ... + 375925.

It is an arithmetic number, because the mean of its divisors is an integer number (723033000).

Almost surely, 2^9942055249 is an apocalyptic number.

It is an amenable number.

9942055249 is a deficient number, since it is larger than the sum of its proper divisors (1626472751).

9942055249 is a wasteful number, since it uses less digits than its factorization.

9942055249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28392.

The product of its (nonzero) digits is 1166400, while the sum is 49.

The square root of 9942055249 is about 99709.8553253388. The cubic root of 9942055249 is about 2150.2653538720.

The spelling of 9942055249 in words is "nine billion, nine hundred forty-two million, fifty-five thousand, two hundred forty-nine".