545053869 has 12 divisors (see below), whose sum is σ = 814448700. Its totient is φ = 350839104.

The previous prime is 545053823. The next prime is 545053897. The reversal of 545053869 is 968350545.

545053869 is a `hidden beast` number, since 5 + 4 + 50 + 538 + 69 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 95062500 + 449991369 = 9750^2 + 21213^2 .

It is not a de Polignac number, because 545053869 - 2¹² = 545049773 is a prime.

It is a super-2 number, since 2×545053869² = 594167440223738322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545053819) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1043904 + ... + 1044425.

It is an arithmetic number, because the mean of its divisors is an integer number (67870725).

Almost surely, 2^545053869 is an apocalyptic number.

It is an amenable number.

545053869 is a deficient number, since it is larger than the sum of its proper divisors (269394831).

545053869 is a wasteful number, since it uses less digits than its factorization.

545053869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2088364 (or 2088361 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The square root of 545053869 is about 23346.3887785670. The cubic root of 545053869 is about 816.8578285992.

It can be divided in two parts, 5450 and 53869, that added together give a cube (59319 = 39³).

The spelling of 545053869 in words is "five hundred forty-five million, fifty-three thousand, eight hundred sixty-nine".