525629 has 4 divisors (see below), whose sum is σ = 566076. Its totient is φ = 485184.

The previous prime is 525607. The next prime is 525641. The reversal of 525629 is 926525.

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 76729 + 448900 = 277^2 + 670^2 .

It is a cyclic number.

It is not a de Polignac number, because 525629 - 2⁸ = 525373 is a prime.

It is a d-powerful number, because it can be written as 5⁴ + 2² + 6 + 5⁴ + 2¹⁹ + 9² .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20204 + ... + 20229.

It is an arithmetic number, because the mean of its divisors is an integer number (141519).

2⁵²⁵⁶²⁹ is an apocalyptic number.

It is an amenable number.

525629 is a deficient number, since it is larger than the sum of its proper divisors (40447).

525629 is a wasteful number, since it uses less digits than its factorization.

525629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40446.

The product of its digits is 5400, while the sum is 29.

The square root of 525629 is about 725.0027586154. The cubic root of 525629 is about 80.7036367963.

The spelling of 525629 in words is "five hundred twenty-five thousand, six hundred twenty-nine".