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525571 is a prime number
BaseRepresentation
bin10000000010100000011
3222200221121
42000110003
5113304241
615133111
74316164
oct2002403
9880847
10525571
11329962
12214197
131552b7
14d976b
15a5ad1
hex80503

525571 has 2 divisors, whose sum is σ = 525572. Its totient is φ = 525570.

The previous prime is 525541. The next prime is 525583. The reversal of 525571 is 175525.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 525571 - 219 = 1283 is a prime.

It is a d-powerful number, because it can be written as 52 + 219 + 54 + 54 + 7 + 1 .

525571 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (525541) 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 as a sum of consecutive naturals, namely, 262785 + 262786.

It is an arithmetic number, because the mean of its divisors is an integer number (262786).

2525571 is an apocalyptic number.

525571 is a deficient number, since it is larger than the sum of its proper divisors (1).

525571 is an equidigital number, since it uses as much as digits as its factorization.

525571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1750, while the sum is 25.

The square root of 525571 is about 724.9627576641. The cubic root of 525571 is about 80.7006683000.

The spelling of 525571 in words is "five hundred twenty-five thousand, five hundred seventy-one".