545780755 has 16 divisors (see below), whose sum is σ = 705910464. Its totient is φ = 402698880.

The previous prime is 545780723. The next prime is 545780771. The reversal of 545780755 is 557087545.

It is not a de Polignac number, because 545780755 - 2⁵ = 545780723 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 95437 + ... + 100993.

It is an arithmetic number, because the mean of its divisors is an integer number (44119404).

Almost surely, 2^545780755 is an apocalyptic number.

545780755 is a deficient number, since it is larger than the sum of its proper divisors (160129709).

545780755 is a wasteful number, since it uses less digits than its factorization.

545780755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7086.

The product of its (nonzero) digits is 980000, while the sum is 46.

The square root of 545780755 is about 23361.9510101361. The cubic root of 545780755 is about 817.2207889111.

It can be divided in two parts, 545780 and 755, that added together give a triangular number (546535 = T₁₀₄₅).

The spelling of 545780755 in words is "five hundred forty-five million, seven hundred eighty thousand, seven hundred fifty-five".