545404545 has 144 divisors (see below), whose sum is σ = 1160939520. Its totient is φ = 235872000.

The previous prime is 545404493. The next prime is 545404571.

545404545 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 545404545 - 2⁷ = 545404417 is a prime.

It is a super-2 number, since 2×545404545² = 594932235413314050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 5399995 + ... + 5400095.

It is an arithmetic number, because the mean of its divisors is an integer number (8062080).

Almost surely, 2^545404545 is an apocalyptic number.

It is an amenable number.

545404545 is an abundant number, since it is smaller than the sum of its proper divisors (615534975).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

545404545 is a wasteful number, since it uses less digits than its factorization.

545404545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236 (or 226 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 36.

The square root of 545404545 is about 23353.8978545338. The cubic root of 545404545 is about 817.0329739941.

The spelling of 545404545 in words is "five hundred forty-five million, four hundred four thousand, five hundred forty-five".