525355 has 4 divisors (see below), whose sum is σ = 630432. Its totient is φ = 420280.

The previous prime is 525353. The next prime is 525359. The reversal of 525355 is 553525.

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

It is not a de Polignac number, because 525355 - 2¹ = 525353 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (525353) 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, 52531 + ... + 52540.

It is an arithmetic number, because the mean of its divisors is an integer number (157608).

2⁵²⁵³⁵⁵ is an apocalyptic number.

525355 is a deficient number, since it is larger than the sum of its proper divisors (105077).

525355 is a wasteful number, since it uses less digits than its factorization.

525355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105076.

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

The square root of 525355 is about 724.8137691849. The cubic root of 525355 is about 80.6896112891.

The spelling of 525355 in words is "five hundred twenty-five thousand, three hundred fifty-five".