545560400 has 120 divisors (see below), whose sum is σ = 1634222784. Its totient is φ = 170035200.

The previous prime is 545560397. The next prime is 545560427. The reversal of 545560400 is 4065545.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21944 + ... + 39656.

Almost surely, 2^545560400 is an apocalyptic number.

545560400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545560400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (817111392).

545560400 is an abundant number, since it is smaller than the sum of its proper divisors (1088662384).

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

545560400 is a wasteful number, since it uses less digits than its factorization.

545560400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17749 (or 17738 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 545560400 is about 23357.2344253338. The cubic root of 545560400 is about 817.1107917948.

The spelling of 545560400 in words is "five hundred forty-five million, five hundred sixty thousand, four hundred".