55102004 has 24 divisors (see below), whose sum is σ = 100493568. Its totient is φ = 26406720.

The previous prime is 55101989. The next prime is 55102009. The reversal of 55102004 is 40020155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55102009) 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 7 ways as a sum of consecutive naturals, for example, 11192 + ... + 15344.

It is an arithmetic number, because the mean of its divisors is an integer number (4187232).

Almost surely, 2^55102004 is an apocalyptic number.

It is an amenable number.

55102004 is a deficient number, since it is larger than the sum of its proper divisors (45391564).

55102004 is a wasteful number, since it uses less digits than its factorization.

55102004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4295 (or 4293 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 55102004 is about 7423.0724097236. The cubic root of 55102004 is about 380.5302017109.

Adding to 55102004 its reverse (40020155), we get a palindrome (95122159).

The spelling of 55102004 in words is "fifty-five million, one hundred two thousand, four".