55788700 has 72 divisors (see below), whose sum is σ = 135397584. Its totient is φ = 19776000.

The previous prime is 55788653. The next prime is 55788703. The reversal of 55788700 is 788755.

55788700 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55788700² = 6224758095380000, which contains 22 as substring.

55788700 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55788703) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44482 + ... + 45718.

It is an arithmetic number, because the mean of its divisors is an integer number (1880522).

Almost surely, 2^55788700 is an apocalyptic number.

55788700 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 55788700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67698792).

55788700 is an abundant number, since it is smaller than the sum of its proper divisors (79608884).

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

55788700 is a wasteful number, since it uses less digits than its factorization.

55788700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303 (or 1296 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 40.

The square root of 55788700 is about 7469.1833556286. The cubic root of 55788700 is about 382.1044367831.

Subtracting from 55788700 its reverse (788755), we obtain a palindrome (54999945).

The spelling of 55788700 in words is "fifty-five million, seven hundred eighty-eight thousand, seven hundred".