55284005 has 48 divisors (see below), whose sum is σ = 82736640. Its totient is φ = 35280000.

The previous prime is 55284001. The next prime is 55284013. The reversal of 55284005 is 50048255.

It is not a de Polignac number, because 55284005 - 2² = 55284001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55284001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 220130 + ... + 220380.

It is an arithmetic number, because the mean of its divisors is an integer number (1723680).

Almost surely, 2^55284005 is an apocalyptic number.

It is an amenable number.

55284005 is a deficient number, since it is larger than the sum of its proper divisors (27452635).

55284005 is a wasteful number, since it uses less digits than its factorization.

55284005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 55284005 is about 7435.3214456404. The cubic root of 55284005 is about 380.9487029171.

The spelling of 55284005 in words is "fifty-five million, two hundred eighty-four thousand, five".