55656505503 has 12 divisors (see below), whose sum is σ = 80415441288. Its totient is φ = 37093854960.

The previous prime is 55656505501. The next prime is 55656505517. The reversal of 55656505503 is 30550565655.

It is not a de Polignac number, because 55656505503 - 2¹ = 55656505501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55656505501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 839808 + ... + 903653.

It is an arithmetic number, because the mean of its divisors is an integer number (6701286774).

Almost surely, 2^55656505503 is an apocalyptic number.

55656505503 is a deficient number, since it is larger than the sum of its proper divisors (24758935785).

55656505503 is a wasteful number, since it uses less digits than its factorization.

55656505503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1747014 (or 1747011 counting only the distinct ones).

The product of its (nonzero) digits is 1687500, while the sum is 45.

The spelling of 55656505503 in words is "fifty-five billion, six hundred fifty-six million, five hundred five thousand, five hundred three".