525555648 has 112 divisors (see below), whose sum is σ = 1595038720. Its totient is φ = 169516800.

The previous prime is 525555647. The next prime is 525555673. The reversal of 525555648 is 846555525.

525555648 is a `hidden beast` number, since 5 + 2 + 55 + 556 + 48 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525555647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48663 + ... + 58473.

Almost surely, 2^525555648 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 525555648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (797519360).

525555648 is an abundant number, since it is smaller than the sum of its proper divisors (1069483072).

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

525555648 is a wasteful number, since it uses less digits than its factorization.

525555648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9863 (or 9847 counting only the distinct ones).

The product of its digits is 1200000, while the sum is 45.

The square root of 525555648 is about 22925.0005016358. Note that the first 3 decimals coincide. The cubic root of 525555648 is about 806.9988253324.

The spelling of 525555648 in words is "five hundred twenty-five million, five hundred fifty-five thousand, six hundred forty-eight".