551627616 has 96 divisors (see below), whose sum is σ = 1482606720. Its totient is φ = 179536896.

The previous prime is 551627591. The next prime is 551627621. The reversal of 551627616 is 616726155.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 893740 + ... + 894356.

It is an arithmetic number, because the mean of its divisors is an integer number (15443820).

Almost surely, 2^551627616 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 551627616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (741303360).

551627616 is an abundant number, since it is smaller than the sum of its proper divisors (930979104).

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

551627616 is a wasteful number, since it uses less digits than its factorization.

551627616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836 (or 828 counting only the distinct ones).

The product of its digits is 75600, while the sum is 39.

The square root of 551627616 is about 23486.7540541472. The cubic root of 551627616 is about 820.1286809752.

The spelling of 551627616 in words is "five hundred fifty-one million, six hundred twenty-seven thousand, six hundred sixteen".