525254 has 4 divisors (see below), whose sum is σ = 787884. Its totient is φ = 262626.

The previous prime is 525253. The next prime is 525257. The reversal of 525254 is 452525.

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

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525253) 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 as a sum of consecutive naturals, namely, 131312 + ... + 131315.

It is an arithmetic number, because the mean of its divisors is an integer number (196971).

2⁵²⁵²⁵⁴ is an apocalyptic number.

525254 is a deficient number, since it is larger than the sum of its proper divisors (262630).

525254 is a wasteful number, since it uses less digits than its factorization.

525254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262629.

The product of its digits is 2000, while the sum is 23.

The square root of 525254 is about 724.7440927665. The cubic root of 525254 is about 80.6844400728.

Adding to 525254 its reverse (452525), we get a palindrome (977779).

The spelling of 525254 in words is "five hundred twenty-five thousand, two hundred fifty-four".