525993 has 8 divisors (see below), whose sum is σ = 755328. Its totient is φ = 323664.

The previous prime is 525983. The next prime is 526027. The reversal of 525993 is 399525.

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

It is not a de Polignac number, because 525993 - 2⁵ = 525961 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (525913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6705 + ... + 6782.

It is an arithmetic number, because the mean of its divisors is an integer number (94416).

2⁵²⁵⁹⁹³ is an apocalyptic number.

It is an amenable number.

525993 is a deficient number, since it is larger than the sum of its proper divisors (229335).

525993 is a wasteful number, since it uses less digits than its factorization.

525993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13503.

The product of its digits is 12150, while the sum is 33.

The square root of 525993 is about 725.2537486977. The cubic root of 525993 is about 80.7222616853.

The spelling of 525993 in words is "five hundred twenty-five thousand, nine hundred ninety-three".