522605 has 8 divisors (see below), whose sum is σ = 632832. Its totient is φ = 414288.

The previous prime is 522601. The next prime is 522623. The reversal of 522605 is 506225.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 522605 - 2² = 522601 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 (522601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224 + ... + 1046.

It is an arithmetic number, because the mean of its divisors is an integer number (79104).

2⁵²²⁶⁰⁵ is an apocalyptic number.

It is an amenable number.

522605 is a deficient number, since it is larger than the sum of its proper divisors (110227).

522605 is a wasteful number, since it uses less digits than its factorization.

522605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 522605 is about 722.9142411102. The cubic root of 522605 is about 80.5485734909.

It can be divided in two parts, 52 and 2605, that multiplied together give a triangular number (135460 = T₅₂₀).

The spelling of 522605 in words is "five hundred twenty-two thousand, six hundred five".