55552000 has 192 divisors, whose sum is σ = 163537920. Its totient is φ = 18432000.

The previous prime is 55551989. The next prime is 55552027. The reversal of 55552000 is 25555.

It is a nialpdrome in base 10.

It is a congruent number.

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, 1791985 + ... + 1792015.

It is an arithmetic number, because the mean of its divisors is an integer number (851760).

Almost surely, 2^55552000 is an apocalyptic number.

55552000 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 55552000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81768960).

55552000 is an abundant number, since it is smaller than the sum of its proper divisors (107985920).

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

55552000 is an equidigital number, since it uses as much as digits as its factorization.

55552000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75 (or 45 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 22.

The square root of 55552000 is about 7453.3214072654. The cubic root of 55552000 is about 381.5632738206.

Adding to 55552000 its reverse (25555), we get a palindrome (55577555).

The spelling of 55552000 in words is "fifty-five million, five hundred fifty-two thousand".