55214800 has 60 divisors (see below), whose sum is σ = 133463680. Its totient is φ = 21951360.

The previous prime is 55214777. The next prime is 55214833. The reversal of 55214800 is 841255.

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, 88891 + ... + 89509.

Almost surely, 2^55214800 is an apocalyptic number.

55214800 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 55214800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66731840).

55214800 is an abundant number, since it is smaller than the sum of its proper divisors (78248880).

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

55214800 is a wasteful number, since it uses less digits than its factorization.

55214800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860 (or 849 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 55214800 is about 7430.6661881691. Note that the first 3 decimals coincide. The cubic root of 55214800 is about 380.7896782387.

The spelling of 55214800 in words is "fifty-five million, two hundred fourteen thousand, eight hundred".