545441553 has 16 divisors (see below), whose sum is σ = 809092800. Its totient is φ = 363163680.

The previous prime is 545441503. The next prime is 545441557. The reversal of 545441553 is 355144545.

545441553 is a `hidden beast` number, since 54 + 54 + 4 + 1 + 553 = 666.

It is not a de Polignac number, because 545441553 - 2⁹ = 545441041 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (545441557) 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, 9358 + ... + 34328.

It is an arithmetic number, because the mean of its divisors is an integer number (50568300).

Almost surely, 2^545441553 is an apocalyptic number.

It is an amenable number.

545441553 is a deficient number, since it is larger than the sum of its proper divisors (263651247).

545441553 is a wasteful number, since it uses less digits than its factorization.

545441553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25789 (or 25783 counting only the distinct ones).

The product of its digits is 120000, while the sum is 36.

The square root of 545441553 is about 23354.6901713553. The cubic root of 545441553 is about 817.0514532879.

The spelling of 545441553 in words is "five hundred forty-five million, four hundred forty-one thousand, five hundred fifty-three".