55004603 has 2 divisors, whose sum is σ = 55004604. Its totient is φ = 55004602.

The previous prime is 55004591. The next prime is 55004627. The reversal of 55004603 is 30640055.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55004603 - 2⁶ = 55004539 is a prime.

It is not a weakly prime, because it can be changed into another prime (55004683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27502301 + 27502302.

It is an arithmetic number, because the mean of its divisors is an integer number (27502302).

Almost surely, 2^55004603 is an apocalyptic number.

55004603 is a deficient number, since it is larger than the sum of its proper divisors (1).

55004603 is an equidigital number, since it uses as much as digits as its factorization.

55004603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 55004603 is about 7416.5088147996. The cubic root of 55004603 is about 380.3058548651.

Adding to 55004603 its reverse (30640055), we get a palindrome (85644658).

The spelling of 55004603 in words is "fifty-five million, four thousand, six hundred three".