551208000 has 448 divisors, whose sum is σ = 2213872128. Its totient is φ = 117964800.

The previous prime is 551207989. The next prime is 551208001. The reversal of 551208000 is 802155.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551208001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2855904 + ... + 2856096.

Almost surely, 2^551208000 is an apocalyptic number.

551208000 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 551208000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1106936064).

551208000 is an abundant number, since it is smaller than the sum of its proper divisors (1662664128).

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

551208000 is a wasteful number, since it uses less digits than its factorization.

551208000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 551208000 is about 23477.8193195194. The cubic root of 551208000 is about 819.9206744601.

The spelling of 551208000 in words is "five hundred fifty-one million, two hundred eight thousand".