55849987072 has 176 divisors, whose sum is σ = 124156281600. Its totient is φ = 24899993600.

The previous prime is 55849987027. The next prime is 55849987093. The reversal of 55849987072 is 27078994855.

It is a tau number, because it is divible by the number of its divisors (176).

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a junction number, because it is equal to n+sod(n) for n = 55849986995 and 55849987013.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179581797 + ... + 179582107.

Almost surely, 2^55849987072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55849987072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62078140800).

55849987072 is an abundant number, since it is smaller than the sum of its proper divisors (68306294528).

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

55849987072 is a wasteful number, since it uses less digits than its factorization.

55849987072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598 (or 580 counting only the distinct ones).

The product of its (nonzero) digits is 50803200, while the sum is 64.

The spelling of 55849987072 in words is "fifty-five billion, eight hundred forty-nine million, nine hundred eighty-seven thousand, seventy-two".