545145633 has 40 divisors (see below), whose sum is σ = 848897280. Its totient is φ = 348248160.

The previous prime is 545145631. The next prime is 545145649. The reversal of 545145633 is 336541545.

545145633 is a `hidden beast` number, since 5 + 4 + 5 + 14 + 5 + 633 = 666.

It is not a de Polignac number, because 545145633 - 2¹ = 545145631 is a prime.

It is a super-2 number, since 2×545145633² = 594367522357941378, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (545145631) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 267663 + ... + 269691.

It is an arithmetic number, because the mean of its divisors is an integer number (21222432).

Almost surely, 2^545145633 is an apocalyptic number.

It is an amenable number.

545145633 is a deficient number, since it is larger than the sum of its proper divisors (303751647).

545145633 is a wasteful number, since it uses less digits than its factorization.

545145633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2179 (or 2170 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

The square root of 545145633 is about 23348.3539676783. The cubic root of 545145633 is about 816.9036674541.

The spelling of 545145633 in words is "five hundred forty-five million, one hundred forty-five thousand, six hundred thirty-three".