525251 has 8 divisors (see below), whose sum is σ = 562464. Its totient is φ = 489280.

The previous prime is 525247. The next prime is 525253. The reversal of 525251 is 152525.

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 525251 - 2² = 525247 is a prime.

It is a super-2 number, since 2×525251² = 551777226002, which contains 22 as substring.

It is a Duffinian 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 in 7 ways as a sum of consecutive naturals, for example, 665 + ... + 1221.

It is an arithmetic number, because the mean of its divisors is an integer number (70308).

2⁵²⁵²⁵¹ is an apocalyptic number.

525251 is a deficient number, since it is larger than the sum of its proper divisors (37213).

525251 is a wasteful number, since it uses less digits than its factorization.

525251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621.

The product of its digits is 500, while the sum is 20.

The square root of 525251 is about 724.7420230675. The cubic root of 525251 is about 80.6842864622.

Adding to 525251 its reverse (152525), we get a palindrome (677776).

The spelling of 525251 in words is "five hundred twenty-five thousand, two hundred fifty-one".