545778722 has 8 divisors (see below), whose sum is σ = 822065772. Its totient is φ = 271756800.

The previous prime is 545778721. The next prime is 545778731. The reversal of 545778722 is 227877545.

It can be written as a sum of positive squares in 2 ways, for example, as 415385161 + 130393561 = 20381^2 + 11419^2 .

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

It is not an unprimeable number, because it can be changed into a prime (545778721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 565679 + ... + 566642.

Almost surely, 2^545778722 is an apocalyptic number.

545778722 is a deficient number, since it is larger than the sum of its proper divisors (276287050).

545778722 is a wasteful number, since it uses less digits than its factorization.

545778722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132564.

The product of its digits is 1097600, while the sum is 47.

The square root of 545778722 is about 23361.9074991748. The cubic root of 545778722 is about 817.2197742107.

The spelling of 545778722 in words is "five hundred forty-five million, seven hundred seventy-eight thousand, seven hundred twenty-two".