55867500 has 180 divisors, whose sum is σ = 191038848. Its totient is φ = 13680000.

The previous prime is 55867489. The next prime is 55867501. The reversal of 55867500 is 576855.

55867500 is a `hidden beast` number, since 5 + 586 + 75 + 0 + 0 = 666.

55867500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (180).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (55867501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 292405 + ... + 292595.

Almost surely, 2^55867500 is an apocalyptic number.

55867500 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 55867500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95519424).

55867500 is an abundant number, since it is smaller than the sum of its proper divisors (135171348).

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

55867500 is a wasteful number, since it uses less digits than its factorization.

55867500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The square root of 55867500 is about 7474.4565019806. The cubic root of 55867500 is about 382.2842561389.

The spelling of 55867500 in words is "fifty-five million, eight hundred sixty-seven thousand, five hundred".