55000054999989 has 24 divisors (see below), whose sum is σ = 86882879962944. Its totient is φ = 33250241040000.

The previous prime is 55000054999957. The next prime is 55000055000021. The reversal of 55000054999989 is 98999945000055.

55000054999989 is a `hidden beast` number, since 5 + 50 + 0 + 0 + 0 + 5 + 499 + 9 + 9 + 89 = 666.

It is an interprime number because it is at equal distance from previous prime (55000054999957) and next prime (55000055000021).

It is not a de Polignac number, because 55000054999989 - 2⁵ = 55000054999957 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55000054999489) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 692673657 + ... + 692753054.

It is an arithmetic number, because the mean of its divisors is an integer number (3620119998456).

Almost surely, 2^{55000054999989} is an apocalyptic number.

It is an amenable number.

55000054999989 is a deficient number, since it is larger than the sum of its proper divisors (31882824962955).

55000054999989 is a wasteful number, since it uses less digits than its factorization.

55000054999989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385427129 (or 1385427126 counting only the distinct ones).

The product of its (nonzero) digits is 236196000, while the sum is 72.

The spelling of 55000054999989 in words is "fifty-five trillion, fifty-four million, nine hundred ninety-nine thousand, nine hundred eighty-nine".