525061 has 4 divisors (see below), whose sum is σ = 530572. Its totient is φ = 519552.

The previous prime is 525043. The next prime is 525101. The reversal of 525061 is 160525.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 172225 + 352836 = 415^2 + 594^2 .

It is a cyclic number.

It is not a de Polignac number, because 525061 - 2⁵ = 525029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2610 + ... + 2803.

It is an arithmetic number, because the mean of its divisors is an integer number (132643).

2⁵²⁵⁰⁶¹ is an apocalyptic number.

It is an amenable number.

525061 is a deficient number, since it is larger than the sum of its proper divisors (5511).

525061 is an equidigital number, since it uses as much as digits as its factorization.

525061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5510.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 525061 is about 724.6109300859. The cubic root of 525061 is about 80.6745565976.

Adding to 525061 its reverse (160525), we get a palindrome (685586).

The spelling of 525061 in words is "five hundred twenty-five thousand, sixty-one".