525546 has 48 divisors (see below), whose sum is σ = 1345344. Its totient is φ = 145152.

The previous prime is 525541. The next prime is 525571. The reversal of 525546 is 645525.

It is a nialpdrome in base 14.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 525546.

It is not an unprimeable number, because it can be changed into a prime (525541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5370 + ... + 5466.

It is an arithmetic number, because the mean of its divisors is an integer number (28028).

2⁵²⁵⁵⁴⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525546, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (672672).

525546 is an abundant number, since it is smaller than the sum of its proper divisors (819798).

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

525546 is a wasteful number, since it uses less digits than its factorization.

525546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 152 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 525546 is about 724.9455151941. The cubic root of 525546 is about 80.6993887084.

The spelling of 525546 in words is "five hundred twenty-five thousand, five hundred forty-six".