525642 has 32 divisors (see below), whose sum is σ = 1185408. Its totient is φ = 154176.

The previous prime is 525641. The next prime is 525649. The reversal of 525642 is 246525.

It is a d-powerful number, because it can be written as 5⁴ + 2⁶ + 6² + 5⁴ + 4 + 2¹⁹ .

It is not an unprimeable number, because it can be changed into a prime (525641) 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, 1648 + ... + 1940.

It is an arithmetic number, because the mean of its divisors is an integer number (37044).

2⁵²⁵⁶⁴² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (592704).

525642 is an abundant number, since it is smaller than the sum of its proper divisors (659766).

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

525642 is a wasteful number, since it uses less digits than its factorization.

525642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334.

The product of its digits is 2400, while the sum is 24.

The square root of 525642 is about 725.0117240431. The cubic root of 525642 is about 80.7043021189.

The spelling of 525642 in words is "five hundred twenty-five thousand, six hundred forty-two".