525535 has 4 divisors (see below), whose sum is σ = 630648. Its totient is φ = 420424.

The previous prime is 525533. The next prime is 525541. The reversal of 525535 is 535525.

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

It is a cyclic number.

It is not a de Polignac number, because 525535 - 2¹ = 525533 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525533) 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, 52549 + ... + 52558.

It is an arithmetic number, because the mean of its divisors is an integer number (157662).

2⁵²⁵⁵³⁵ is an apocalyptic number.

525535 is a deficient number, since it is larger than the sum of its proper divisors (105113).

525535 is a wasteful number, since it uses less digits than its factorization.

525535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105112.

The product of its digits is 3750, while the sum is 25.

The square root of 525535 is about 724.9379283773. The cubic root of 525535 is about 80.6988256753.

It can be divided in two parts, 525 and 535, that multiplied together give a triangular number (280875 = T₇₄₉).

The spelling of 525535 in words is "five hundred twenty-five thousand, five hundred thirty-five".