551398848 has 448 divisors, whose sum is σ = 2075566080. Its totient is φ = 124416000.

The previous prime is 551398831. The next prime is 551398853. The reversal of 551398848 is 848893155.

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

Its product of digits (1382400) is a multiple of the sum of its prime factors (216).

It is a self number, because there is not a number n which added to its sum of digits gives 551398848.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3651573 + ... + 3651723.

It is an arithmetic number, because the mean of its divisors is an integer number (4632960).

Almost surely, 2^551398848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551398848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1037783040).

551398848 is an abundant number, since it is smaller than the sum of its proper divisors (1524167232).

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

551398848 is a wasteful number, since it uses less digits than its factorization.

551398848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216 (or 206 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 51.

The square root of 551398848 is about 23481.8833997616. The cubic root of 551398848 is about 820.0152921994.

The spelling of 551398848 in words is "five hundred fifty-one million, three hundred ninety-eight thousand, eight hundred forty-eight".