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525331 = 1943643
BaseRepresentation
bin10000000010000010011
3222200121201
42000100103
5113302311
615132031
74315402
oct2002023
9880551
10525331
11329764
12214017
13155161
14d9639
15a59c1
hex80413

525331 has 8 divisors (see below), whose sum is σ = 566720. Its totient is φ = 485352.

The previous prime is 525313. The next prime is 525353. The reversal of 525331 is 133525.

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 525331 - 25 = 525299 is a prime.

It is a super-2 number, since 2×5253312 = 551945319122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 525299 and 525308.

It is not an unprimeable number, because it can be changed into a prime (525361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 496 + ... + 1138.

It is an arithmetic number, because the mean of its divisors is an integer number (70840).

2525331 is an apocalyptic number.

525331 is a deficient number, since it is larger than the sum of its proper divisors (41389).

525331 is a wasteful number, since it uses less digits than its factorization.

525331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705.

The product of its digits is 450, while the sum is 19.

The square root of 525331 is about 724.7972130189. The cubic root of 525331 is about 80.6883825453.

Adding to 525331 its reverse (133525), we get a palindrome (658856).

The spelling of 525331 in words is "five hundred twenty-five thousand, three hundred thirty-one".

Divisors: 1 19 43 643 817 12217 27649 525331