55284100 has 18 divisors (see below), whose sum is σ = 119966714. Its totient is φ = 22113600.

The previous prime is 55284077. The next prime is 55284109. The reversal of 55284100 is 148255.

It can be written as a sum of positive squares in 3 ways, for example, as 7064964 + 48219136 = 2658^2 + 6944^2 .

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

It is not an unprimeable number, because it can be changed into a prime (55284109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 276321 + ... + 276520.

Almost surely, 2^55284100 is an apocalyptic number.

55284100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55284100 is an abundant number, since it is smaller than the sum of its proper divisors (64682614).

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

55284100 is a wasteful number, since it uses less digits than its factorization.

55284100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552855 (or 552848 counting only the distinct ones).

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

The square root of 55284100 is about 7435.3278340635. The cubic root of 55284100 is about 380.9489211243.

The spelling of 55284100 in words is "fifty-five million, two hundred eighty-four thousand, one hundred".