551552064 has 112 divisors (see below), whose sum is σ = 1755648000. Its totient is φ = 149285376.

The previous prime is 551552059. The next prime is 551552077. The reversal of 551552064 is 460255155.

It is a tau number, because it is divible by the number of its divisors (112).

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, 14737 + ... + 36335.

Almost surely, 2^551552064 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 551552064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (877824000).

551552064 is an abundant number, since it is smaller than the sum of its proper divisors (1204095936).

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

551552064 is a wasteful number, since it uses less digits than its factorization.

551552064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21640 (or 21630 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 33.

The square root of 551552064 is about 23485.1456031254. The cubic root of 551552064 is about 820.0912371216.

The spelling of 551552064 in words is "five hundred fifty-one million, five hundred fifty-two thousand, sixty-four".