9955619431 has 4 divisors (see below), whose sum is σ = 9956056032. Its totient is φ = 9955182832.

The previous prime is 9955619393. The next prime is 9955619459. The reversal of 9955619431 is 1349165599.

It is a happy number.

9955619431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 9955619431 - 2⁹ = 9955618919 is a prime.

It is a super-2 number, since 2×9955619431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9955619461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182095 + ... + 230368.

It is an arithmetic number, because the mean of its divisors is an integer number (2489014008).

Almost surely, 2^9955619431 is an apocalyptic number.

9955619431 is a deficient number, since it is larger than the sum of its proper divisors (436601).

9955619431 is a wasteful number, since it uses less digits than its factorization.

9955619431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436600.

The product of its digits is 1312200, while the sum is 52.

The square root of 9955619431 is about 99777.8504027823. The cubic root of 9955619431 is about 2151.2427955142.

The spelling of 9955619431 in words is "nine billion, nine hundred fifty-five million, six hundred nineteen thousand, four hundred thirty-one".