55985136760 has 64 divisors (see below), whose sum is σ = 145696320000. Its totient is φ = 18963632256.

The previous prime is 55985136749. The next prime is 55985136769. The reversal of 55985136760 is 6763158955.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55985136769) 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 15 ways as a sum of consecutive naturals, for example, 1181260 + ... + 1227739.

It is an arithmetic number, because the mean of its divisors is an integer number (2276505000).

Almost surely, 2^55985136760 is an apocalyptic number.

It is an amenable number.

55985136760 is an abundant number, since it is smaller than the sum of its proper divisors (89711183240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55985136760 is a wasteful number, since it uses less digits than its factorization.

55985136760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2409100 (or 2409096 counting only the distinct ones).

The product of its (nonzero) digits is 6804000, while the sum is 55.

The spelling of 55985136760 in words is "fifty-five billion, nine hundred eighty-five million, one hundred thirty-six thousand, seven hundred sixty".