55578357603 has 12 divisors (see below), whose sum is σ = 83253178008. Its totient is φ = 37052238240.

The previous prime is 55578357589. The next prime is 55578357607. The reversal of 55578357603 is 30675387555.

55578357603 is a `hidden beast` number, since 5 + 5 + 578 + 3 + 5 + 7 + 60 + 3 = 666.

It is not a de Polignac number, because 55578357603 - 2²⁰ = 55577309027 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55578357603.

It is not an unprimeable number, because it can be changed into a prime (55578357607) 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, 114358518 + ... + 114359003.

It is an arithmetic number, because the mean of its divisors is an integer number (6937764834).

Almost surely, 2^55578357603 is an apocalyptic number.

55578357603 is a deficient number, since it is larger than the sum of its proper divisors (27674820405).

55578357603 is an equidigital number, since it uses as much as digits as its factorization.

55578357603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228717536 (or 228717524 counting only the distinct ones).

The product of its (nonzero) digits is 13230000, while the sum is 54.

The spelling of 55578357603 in words is "fifty-five billion, five hundred seventy-eight million, three hundred fifty-seven thousand, six hundred three".