551104560 has 120 divisors (see below), whose sum is σ = 1919408400. Its totient is φ = 146956032.

The previous prime is 551104523. The next prime is 551104571. The reversal of 551104560 is 65401155.

It is a happy number.

551104560 is a `hidden beast` number, since 551 + 10 + 45 + 60 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5266 + ... + 33614.

It is an arithmetic number, because the mean of its divisors is an integer number (15995070).

Almost surely, 2^551104560 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 551104560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (959704200).

551104560 is an abundant number, since it is smaller than the sum of its proper divisors (1368303840).

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

551104560 is a wasteful number, since it uses less digits than its factorization.

551104560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28377 (or 28359 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 551104560 is about 23475.6162858401. The cubic root of 551104560 is about 819.8693823281.

It can be divided in two parts, 551 and 104560, that added together give a triangular number (105111 = T₄₅₈).

The spelling of 551104560 in words is "five hundred fifty-one million, one hundred four thousand, five hundred sixty".