545235644523 has 16 divisors (see below), whose sum is σ = 740736576000. Its totient is φ = 356613295584.

The previous prime is 545235644489. The next prime is 545235644539. The reversal of 545235644523 is 325446532545.

It is not a de Polignac number, because 545235644523 - 2¹⁰ = 545235643499 is a prime.

It is a super-2 number, since 2×545235644523² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (545235644563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3338590 + ... + 3498092.

It is an arithmetic number, because the mean of its divisors is an integer number (46296036000).

Almost surely, 2^545235644523 is an apocalyptic number.

545235644523 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

545235644523 is a deficient number, since it is larger than the sum of its proper divisors (195500931477).

545235644523 is a wasteful number, since it uses less digits than its factorization.

545235644523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181058.

The product of its digits is 8640000, while the sum is 48.

The spelling of 545235644523 in words is "five hundred forty-five billion, two hundred thirty-five million, six hundred forty-four thousand, five hundred twenty-three".