545545869 has 16 divisors (see below), whose sum is σ = 793920000. Its totient is φ = 330467760.

The previous prime is 545545853. The next prime is 545545927. The reversal of 545545869 is 968545545.

It is a happy number.

It is not a de Polignac number, because 545545869 - 2⁴ = 545545853 is a prime.

It is a super-2 number, since 2×545545869² = 595240590365930322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545545369) 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, 106632 + ... + 111630.

It is an arithmetic number, because the mean of its divisors is an integer number (49620000).

Almost surely, 2^545545869 is an apocalyptic number.

It is an amenable number.

545545869 is a deficient number, since it is larger than the sum of its proper divisors (248374131).

545545869 is a wasteful number, since it uses less digits than its factorization.

545545869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8320.

The product of its digits is 4320000, while the sum is 51.

The square root of 545545869 is about 23356.9233633199. The cubic root of 545545869 is about 817.1035371491.

The spelling of 545545869 in words is "five hundred forty-five million, five hundred forty-five thousand, eight hundred sixty-nine".