55445145553523 has 8 divisors (see below), whose sum is σ = 60789561139200. Its totient is φ = 50151387935880.

The previous prime is 55445145553453. The next prime is 55445145553543. The reversal of 55445145553523 is 32535554154455.

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

It is not a de Polignac number, because 55445145553523 - 2⁴⁴ = 37852959509107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55445145553543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12664489715 + ... + 12664494092.

It is an arithmetic number, because the mean of its divisors is an integer number (7598695142400).

Almost surely, 2^{55445145553523} is an apocalyptic number.

55445145553523 is a deficient number, since it is larger than the sum of its proper divisors (5344415585677).

55445145553523 is a wasteful number, since it uses less digits than its factorization.

55445145553523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25328984017.

The product of its digits is 90000000, while the sum is 56.

The spelling of 55445145553523 in words is "fifty-five trillion, four hundred forty-five billion, one hundred forty-five million, five hundred fifty-three thousand, five hundred twenty-three".