55496447999 has 8 divisors (see below), whose sum is σ = 55684685952. Its totient is φ = 55308516760.

The previous prime is 55496447971. The next prime is 55496448079. The reversal of 55496447999 is 99974469455.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55496447999 - 2³² = 51201480703 is a prime.

It is a super-2 number, since 2×55496447999² (a number of 22 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 (55496447099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288752 + ... + 440874.

It is an arithmetic number, because the mean of its divisors is an integer number (6960585744).

Almost surely, 2^55496447999 is an apocalyptic number.

55496447999 is a deficient number, since it is larger than the sum of its proper divisors (188237953).

55496447999 is a wasteful number, since it uses less digits than its factorization.

55496447999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153357.

The product of its digits is 440899200, while the sum is 71.

The spelling of 55496447999 in words is "fifty-five billion, four hundred ninety-six million, four hundred forty-seven thousand, nine hundred ninety-nine".