55544003553 has 16 divisors (see below), whose sum is σ = 75429033536. Its totient is φ = 36348963840.

The previous prime is 55544003531. The next prime is 55544003561. The reversal of 55544003553 is 35530044555.

It is not a de Polignac number, because 55544003553 - 2⁹ = 55544003041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55544003573) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 554800 + ... + 647217.

It is an arithmetic number, because the mean of its divisors is an integer number (4714314596).

Almost surely, 2^55544003553 is an apocalyptic number.

It is an amenable number.

55544003553 is a deficient number, since it is larger than the sum of its proper divisors (19885029983).

55544003553 is a wasteful number, since it uses less digits than its factorization.

55544003553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202304.

The product of its (nonzero) digits is 450000, while the sum is 39.

The spelling of 55544003553 in words is "fifty-five billion, five hundred forty-four million, three thousand, five hundred fifty-three".