545521525155 has 24 divisors (see below), whose sum is σ = 961597269360. Its totient is φ = 286013544000.

The previous prime is 545521525147. The next prime is 545521525181. The reversal of 545521525155 is 551525125545.

545521525155 is a `hidden beast` number, since 5 + 4 + 55 + 21 + 525 + 1 + 55 = 666.

It is not a de Polignac number, because 545521525155 - 2³ = 545521525147 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 545521525155.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102732096 + ... + 102737405.

It is an arithmetic number, because the mean of its divisors is an integer number (40066552890).

Almost surely, 2^545521525155 is an apocalyptic number.

545521525155 is a deficient number, since it is larger than the sum of its proper divisors (416075744205).

545521525155 is a wasteful number, since it uses less digits than its factorization.

545521525155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205469571 (or 205469568 counting only the distinct ones).

The product of its digits is 1250000, while the sum is 45.

The spelling of 545521525155 in words is "five hundred forty-five billion, five hundred twenty-one million, five hundred twenty-five thousand, one hundred fifty-five".