552665520 has 240 divisors, whose sum is σ = 2091009024. Its totient is φ = 129600000.

The previous prime is 552665507. The next prime is 552665537. The reversal of 552665520 is 25566255.

552665520 is a `hidden beast` number, since 55 + 26 + 65 + 520 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 244395 + ... + 246645.

Almost surely, 2^552665520 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 552665520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1045504512).

552665520 is an abundant number, since it is smaller than the sum of its proper divisors (1538343504).

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

552665520 is a wasteful number, since it uses less digits than its factorization.

552665520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2312 (or 2303 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The square root of 552665520 is about 23508.8391886967. The cubic root of 552665520 is about 820.6427243317.

The spelling of 552665520 in words is "five hundred fifty-two million, six hundred sixty-five thousand, five hundred twenty".