55647132885 has 48 divisors (see below), whose sum is σ = 98178687360. Its totient is φ = 29151239040.

The previous prime is 55647132883. The next prime is 55647132887. The reversal of 55647132885 is 58823174655.

55647132885 is a `hidden beast` number, since 5 + 564 + 71 + 3 + 2 + 8 + 8 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (55647132883) and next prime (55647132887).

It is not a de Polignac number, because 55647132885 - 2¹ = 55647132883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55647132883) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 827082 + ... + 891828.

It is an arithmetic number, because the mean of its divisors is an integer number (2045389320).

Almost surely, 2^55647132885 is an apocalyptic number.

It is an amenable number.

55647132885 is a deficient number, since it is larger than the sum of its proper divisors (42531554475).

55647132885 is a wasteful number, since it uses less digits than its factorization.

55647132885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65098 (or 65095 counting only the distinct ones).

The product of its digits is 8064000, while the sum is 54.

The spelling of 55647132885 in words is "fifty-five billion, six hundred forty-seven million, one hundred thirty-two thousand, eight hundred eighty-five".