525566052 has 72 divisors (see below), whose sum is σ = 1455566112. Its totient is φ = 158572800.

The previous prime is 525566047. The next prime is 525566059. The reversal of 525566052 is 250665525.

525566052 is a `hidden beast` number, since 52 + 556 + 6 + 0 + 52 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

It is a junction number, because it is equal to n+sod(n) for n = 525565998 and 525566016.

It is not an unprimeable number, because it can be changed into a prime (525566059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92683 + ... + 98189.

It is an arithmetic number, because the mean of its divisors is an integer number (20216196).

Almost surely, 2^525566052 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 525566052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (727783056).

525566052 is an abundant number, since it is smaller than the sum of its proper divisors (930000060).

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

525566052 is a wasteful number, since it uses less digits than its factorization.

525566052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5769 (or 5764 counting only the distinct ones).

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

The square root of 525566052 is about 22925.2274143573. The cubic root of 525566052 is about 807.0041504649.

The spelling of 525566052 in words is "five hundred twenty-five million, five hundred sixty-six thousand, fifty-two".