55004002 has 4 divisors (see below), whose sum is σ = 82506006. Its totient is φ = 27502000.

The previous prime is 55003973. The next prime is 55004003. The reversal of 55004002 is 20040055.

It is a happy number.

55004002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 48455521 + 6548481 = 6961^2 + 2559^2 .

It is not an unprimeable number, because it can be changed into a prime (55004003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13750999 + ... + 13751002.

Almost surely, 2^55004002 is an apocalyptic number.

55004002 is a deficient number, since it is larger than the sum of its proper divisors (27502004).

55004002 is a wasteful number, since it uses less digits than its factorization.

55004002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27502003.

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 55004002 is about 7416.4682969726. The cubic root of 55004002 is about 380.3044697408.

Adding to 55004002 its reverse (20040055), we get a palindrome (75044057).

The spelling of 55004002 in words is "fifty-five million, four thousand, two".