55671100 has 36 divisors (see below), whose sum is σ = 122523408. Its totient is φ = 21952000.

The previous prime is 55671089. The next prime is 55671127. The reversal of 55671100 is 117655.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3180 + ... + 11020.

It is an arithmetic number, because the mean of its divisors is an integer number (3403428).

Almost surely, 2^55671100 is an apocalyptic number.

55671100 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 55671100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61261704).

55671100 is an abundant number, since it is smaller than the sum of its proper divisors (66852308).

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

55671100 is a wasteful number, since it uses less digits than its factorization.

55671100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7926 (or 7919 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 25.

The square root of 55671100 is about 7461.3068560407. The cubic root of 55671100 is about 381.8357617481.

Adding to 55671100 its reverse (117655), we get a palindrome (55788755).

The spelling of 55671100 in words is "fifty-five million, six hundred seventy-one thousand, one hundred".