55555255050503 has 32 divisors (see below), whose sum is σ = 63936108214272. Its totient is φ = 47882430288000.

The previous prime is 55555255050487. The next prime is 55555255050539. The reversal of 55555255050503 is 30505055255555.

55555255050503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 55555255050503 - 2⁴ = 55555255050487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55555255050593) 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 31 ways as a sum of consecutive naturals, for example, 10811075 + ... + 15099332.

It is an arithmetic number, because the mean of its divisors is an integer number (1998003381696).

Almost surely, 2^{55555255050503} is an apocalyptic number.

55555255050503 is a deficient number, since it is larger than the sum of its proper divisors (8380853163769).

55555255050503 is a wasteful number, since it uses less digits than its factorization.

55555255050503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25910615.

The product of its (nonzero) digits is 11718750, while the sum is 50.

The spelling of 55555255050503 in words is "fifty-five trillion, five hundred fifty-five billion, two hundred fifty-five million, fifty thousand, five hundred three".