545421550555 has 16 divisors (see below), whose sum is σ = 752771079360. Its totient is φ = 371621158272.

The previous prime is 545421550549. The next prime is 545421550559. The reversal of 545421550555 is 555055124545.

It is not a de Polignac number, because 545421550555 - 2³ = 545421550547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (545421550559) 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, 49623400 + ... + 49634389.

It is an arithmetic number, because the mean of its divisors is an integer number (47048192460).

Almost surely, 2^545421550555 is an apocalyptic number.

545421550555 is a deficient number, since it is larger than the sum of its proper divisors (207349528805).

545421550555 is a wasteful number, since it uses less digits than its factorization.

545421550555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99257958.

The product of its (nonzero) digits is 2500000, while the sum is 46.

The spelling of 545421550555 in words is "five hundred forty-five billion, four hundred twenty-one million, five hundred fifty thousand, five hundred fifty-five".