545222412 has 54 divisors (see below), whose sum is σ = 1603218708. Its totient is φ = 155777328.

The previous prime is 545222339. The next prime is 545222441. The reversal of 545222412 is 214222545.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 152778 + ... + 156305.

Almost surely, 2^545222412 is an apocalyptic number.

It is an amenable number.

545222412 is an abundant number, since it is smaller than the sum of its proper divisors (1057996296).

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

545222412 is a wasteful number, since it uses less digits than its factorization.

545222412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309107 (or 309095 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 545222412 is about 23349.9981156316. The cubic root of 545222412 is about 816.9420169021.

Adding to 545222412 its reverse (214222545), we get a palindrome (759444957).

The spelling of 545222412 in words is "five hundred forty-five million, two hundred twenty-two thousand, four hundred twelve".