545408783 has 4 divisors (see below), whose sum is σ = 545757528. Its totient is φ = 545060040.

The previous prime is 545408779. The next prime is 545408789. The reversal of 545408783 is 387804545.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 545408783 - 2² = 545408779 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545408789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172016 + ... + 175157.

It is an arithmetic number, because the mean of its divisors is an integer number (136439382).

Almost surely, 2^545408783 is an apocalyptic number.

545408783 is a deficient number, since it is larger than the sum of its proper divisors (348745).

545408783 is a wasteful number, since it uses less digits than its factorization.

545408783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348744.

The product of its (nonzero) digits is 537600, while the sum is 44.

The square root of 545408783 is about 23353.9885886758. The cubic root of 545408783 is about 817.0350902072.

The spelling of 545408783 in words is "five hundred forty-five million, four hundred eight thousand, seven hundred eighty-three".