55445330553 has 8 divisors (see below), whose sum is σ = 73956120000. Its totient is φ = 36949047408.

The previous prime is 55445330543. The next prime is 55445330587. The reversal of 55445330553 is 35503354455.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55445330553 - 2⁴ = 55445330537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55445330543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3617653 + ... + 3632946.

It is an arithmetic number, because the mean of its divisors is an integer number (9244515000).

Almost surely, 2^55445330553 is an apocalyptic number.

It is an amenable number.

55445330553 is a deficient number, since it is larger than the sum of its proper divisors (18510789447).

55445330553 is a wasteful number, since it uses less digits than its factorization.

55445330553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7253151.

The product of its (nonzero) digits is 1350000, while the sum is 42.

The spelling of 55445330553 in words is "fifty-five billion, four hundred forty-five million, three hundred thirty thousand, five hundred fifty-three".