55603324447 has 12 divisors (see below), whose sum is σ = 64712865168. Its totient is φ = 47575035200.

The previous prime is 55603324429. The next prime is 55603324451. The reversal of 55603324447 is 74442330655.

It is not a de Polignac number, because 55603324447 - 2¹⁹ = 55602800159 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 (55603324247) 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, 13513579 + ... + 13517692.

It is an arithmetic number, because the mean of its divisors is an integer number (5392738764).

Almost surely, 2^55603324447 is an apocalyptic number.

55603324447 is a deficient number, since it is larger than the sum of its proper divisors (9109540721).

55603324447 is a wasteful number, since it uses less digits than its factorization.

55603324447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27031310 (or 27031299 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 43.

The spelling of 55603324447 in words is "fifty-five billion, six hundred three million, three hundred twenty-four thousand, four hundred forty-seven".