545221712 has 40 divisors (see below), whose sum is σ = 1208380992. Its totient is φ = 233452800.

The previous prime is 545221669. The next prime is 545221717. The reversal of 545221712 is 217122545.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545221717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215012 + ... + 217532.

Almost surely, 2^545221712 is an apocalyptic number.

It is an amenable number.

545221712 is an abundant number, since it is smaller than the sum of its proper divisors (663159280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

545221712 is a wasteful number, since it uses less digits than its factorization.

545221712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4467 (or 4461 counting only the distinct ones).

The product of its digits is 5600, while the sum is 29.

The square root of 545221712 is about 23349.9831263322. The cubic root of 545221712 is about 816.9416672835.

The spelling of 545221712 in words is "five hundred forty-five million, two hundred twenty-one thousand, seven hundred twelve".