551552 has 32 divisors (see below), whose sum is σ = 1142400. Its totient is φ = 264960.

The previous prime is 551549. The next prime is 551557. The reversal of 551552 is 255155.

It is a tau number, because it is divible by the number of its divisors (32).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 551552.

It is not an unprimeable number, because it can be changed into a prime (551557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3899 + ... + 4037.

It is an arithmetic number, because the mean of its divisors is an integer number (35700).

2⁵⁵¹⁵⁵² 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 551552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (571200).

551552 is an abundant number, since it is smaller than the sum of its proper divisors (590848).

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

551552 is a wasteful number, since it uses less digits than its factorization.

551552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184 (or 172 counting only the distinct ones).

The product of its digits is 1250, while the sum is 23.

The square root of 551552 is about 742.6654697776. The cubic root of 551552 is about 82.0091205402.

The spelling of 551552 in words is "five hundred fifty-one thousand, five hundred fifty-two".