545111553 has 16 divisors (see below), whose sum is σ = 833742720. Its totient is φ = 310331136.

The previous prime is 545111551. The next prime is 545111587. The reversal of 545111553 is 355111545.

It is not a de Polignac number, because 545111553 - 2¹ = 545111551 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 545111553.

It is not an unprimeable number, because it can be changed into a prime (545111551) 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, 42600 + ... + 53897.

It is an arithmetic number, because the mean of its divisors is an integer number (52108920).

Almost surely, 2^545111553 is an apocalyptic number.

It is an amenable number.

545111553 is a deficient number, since it is larger than the sum of its proper divisors (288631167).

545111553 is a wasteful number, since it uses less digits than its factorization.

545111553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96776.

The product of its digits is 7500, while the sum is 30.

The square root of 545111553 is about 23347.6241403703. The cubic root of 545111553 is about 816.8866440781.

The spelling of 545111553 in words is "five hundred forty-five million, one hundred eleven thousand, five hundred fifty-three".