55505255603 has 16 divisors (see below), whose sum is σ = 64659403200. Its totient is φ = 46661788800.

The previous prime is 55505255581. The next prime is 55505255647. The reversal of 55505255603 is 30655250555.

It is a cyclic number.

It is not a de Polignac number, because 55505255603 - 2⁸ = 55505255347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55505255653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37208 + ... + 335253.

It is an arithmetic number, because the mean of its divisors is an integer number (4041212700).

Almost surely, 2^55505255603 is an apocalyptic number.

55505255603 is a deficient number, since it is larger than the sum of its proper divisors (9154147597).

55505255603 is a wasteful number, since it uses less digits than its factorization.

55505255603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372878.

The product of its (nonzero) digits is 562500, while the sum is 41.

The spelling of 55505255603 in words is "fifty-five billion, five hundred five million, two hundred fifty-five thousand, six hundred three".