551304000 has 672 divisors, whose sum is σ = 2307701760. Its totient is φ = 124416000.

The previous prime is 551303993. The next prime is 551304037. The reversal of 551304000 is 403155.

It is a super-2 number, since 2×551304000² = 607872200832000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 17783985 + ... + 17784015.

It is an arithmetic number, because the mean of its divisors is an integer number (3434080).

Almost surely, 2^551304000 is an apocalyptic number.

551304000 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 551304000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1153850880).

551304000 is an abundant number, since it is smaller than the sum of its proper divisors (1756397760).

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

551304000 is a wasteful number, since it uses less digits than its factorization.

551304000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 551304000 is about 23479.8637134034. The cubic root of 551304000 is about 819.9682716258.

Adding to 551304000 its reverse (403155), we get a palindrome (551707155).

The spelling of 551304000 in words is "five hundred fifty-one million, three hundred four thousand".