55604503 has 2 divisors, whose sum is σ = 55604504. Its totient is φ = 55604502.

The previous prime is 55604477. The next prime is 55604509. The reversal of 55604503 is 30540655.

55604503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55604503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55604509) 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, 27802251 + 27802252.

It is an arithmetic number, because the mean of its divisors is an integer number (27802252).

Almost surely, 2^55604503 is an apocalyptic number.

55604503 is a deficient number, since it is larger than the sum of its proper divisors (1).

55604503 is an equidigital number, since it uses as much as digits as its factorization.

55604503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 55604503 is about 7456.8426964768. The cubic root of 55604503 is about 381.6834429633.

The spelling of 55604503 in words is "fifty-five million, six hundred four thousand, five hundred three".