551628912 has 80 divisors (see below), whose sum is σ = 1448469792. Its totient is φ = 180879360.

The previous prime is 551628899. The next prime is 551628947. The reversal of 551628912 is 219826155.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1196362 + ... + 1196822.

Almost surely, 2^551628912 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 551628912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (724234896).

551628912 is an abundant number, since it is smaller than the sum of its proper divisors (896840880).

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

551628912 is a wasteful number, since it uses less digits than its factorization.

551628912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826 (or 820 counting only the distinct ones).

The product of its digits is 43200, while the sum is 39.

The square root of 551628912 is about 23486.7816441504. The cubic root of 551628912 is about 820.1293232478.

The spelling of 551628912 in words is "five hundred fifty-one million, six hundred twenty-eight thousand, nine hundred twelve".