545224400 has 60 divisors (see below), whose sum is σ = 1497038112. Its totient is φ = 186933120.

The previous prime is 545224387. The next prime is 545224411. The reversal of 545224400 is 4422545.

It is a self number, because there is not a number n which added to its sum of digits gives 545224400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94562 + ... + 100161.

Almost surely, 2^545224400 is an apocalyptic number.

545224400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

545224400 is an abundant number, since it is smaller than the sum of its proper divisors (951813712).

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

545224400 is a wasteful number, since it uses less digits than its factorization.

545224400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194748 (or 194737 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 545224400 is about 23350.0406851894. The cubic root of 545224400 is about 816.9430098172.

Adding to 545224400 its reverse (4422545), we get a palindrome (549646945).

The spelling of 545224400 in words is "five hundred forty-five million, two hundred twenty-four thousand, four hundred".