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525431 is a prime number
BaseRepresentation
bin10000000010001110111
3222200202102
42000101313
5113303211
615132315
74315604
oct2002167
9880672
10525431
11329845
1221409b
1315520a
14d96ab
15a5a3b
hex80477

525431 has 2 divisors, whose sum is σ = 525432. Its totient is φ = 525430.

The previous prime is 525409. The next prime is 525433. The reversal of 525431 is 134525.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 525431 - 218 = 263287 is a prime.

It is a super-2 number, since 2×5254312 = 552155471522, which contains 22 as substring.

Together with 525433, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (525433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262715 + 262716.

It is an arithmetic number, because the mean of its divisors is an integer number (262716).

2525431 is an apocalyptic number.

525431 is a deficient number, since it is larger than the sum of its proper divisors (1).

525431 is an equidigital number, since it uses as much as digits as its factorization.

525431 is an evil number, because the sum of its binary digits is even.

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

The square root of 525431 is about 724.8661945490. The cubic root of 525431 is about 80.6935020644.

Adding to 525431 its reverse (134525), we get a palindrome (659956).

The spelling of 525431 in words is "five hundred twenty-five thousand, four hundred thirty-one".