545756331 has 8 divisors (see below), whose sum is σ = 730361344. Its totient is φ = 362494440.

The previous prime is 545756311. The next prime is 545756359. The reversal of 545756331 is 133657545.

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

It is not a de Polignac number, because 545756331 - 2¹⁰ = 545755307 is a prime.

It is a super-2 number, since 2×545756331² = 595699945653163122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 545756331.

It is not an unprimeable number, because it can be changed into a prime (545756311) 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, 334831 + ... + 336456.

It is an arithmetic number, because the mean of its divisors is an integer number (91295168).

Almost surely, 2^545756331 is an apocalyptic number.

545756331 is a deficient number, since it is larger than the sum of its proper divisors (184605013).

545756331 is a wasteful number, since it uses less digits than its factorization.

545756331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671561.

The product of its digits is 189000, while the sum is 39.

The square root of 545756331 is about 23361.4282739733. The cubic root of 545756331 is about 817.2085983639.

It can be divided in two parts, 54575 and 6331, that added together give a palindrome (60906).

The spelling of 545756331 in words is "five hundred forty-five million, seven hundred fifty-six thousand, three hundred thirty-one".