545545451 has 8 divisors (see below), whose sum is σ = 595636464. Its totient is φ = 495537120.

The previous prime is 545545433. The next prime is 545545457. The reversal of 545545451 is 154545545.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 545545451 - 2¹⁸ = 545283307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545545457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6440 + ... + 33653.

It is an arithmetic number, because the mean of its divisors is an integer number (74454558).

Almost surely, 2^545545451 is an apocalyptic number.

545545451 is a deficient number, since it is larger than the sum of its proper divisors (50091013).

545545451 is a wasteful number, since it uses less digits than its factorization.

545545451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41341.

The product of its digits is 200000, while the sum is 38.

The square root of 545545451 is about 23356.9144152219. The cubic root of 545545451 is about 817.1033284594.

The spelling of 545545451 in words is "five hundred forty-five million, five hundred forty-five thousand, four hundred fifty-one".