55887000 has 128 divisors (see below), whose sum is σ = 187911360. Its totient is φ = 13747200.

The previous prime is 55886993. The next prime is 55887001. The reversal of 55887000 is 78855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55887001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38284 + ... + 39716.

Almost surely, 2^55887000 is an apocalyptic number.

55887000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55887000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93955680).

55887000 is an abundant number, since it is smaller than the sum of its proper divisors (132024360).

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

55887000 is a wasteful number, since it uses less digits than its factorization.

55887000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470 (or 1456 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 33.

The square root of 55887000 is about 7475.7608308452. The cubic root of 55887000 is about 382.3287284818.

The spelling of 55887000 in words is "fifty-five million, eight hundred eighty-seven thousand".