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7001525 = 52280061
BaseRepresentation
bin11010101101010110110101
3111011201021202
4122231112311
53243022100
6410022245
7113340416
oct32552665
914151252
107001525
113a52393
122417985
1315b1b1b
14d0380d
159347d5
hex6ad5b5

7001525 has 6 divisors (see below), whose sum is σ = 8681922. Its totient is φ = 5601200.

The previous prime is 7001513. The next prime is 7001537. The reversal of 7001525 is 5251007.

It is an interprime number because it is at equal distance from previous prime (7001513) and next prime (7001537).

It can be written as a sum of positive squares in 3 ways, for example, as 806404 + 6195121 = 898^2 + 2489^2 .

It is not a de Polignac number, because 7001525 - 216 = 6935989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7001497 and 7001506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 140006 + ... + 140055.

It is an arithmetic number, because the mean of its divisors is an integer number (1446987).

Almost surely, 27001525 is an apocalyptic number.

It is an amenable number.

7001525 is a deficient number, since it is larger than the sum of its proper divisors (1680397).

7001525 is a wasteful number, since it uses less digits than its factorization.

7001525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280071 (or 280066 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 20.

The square root of 7001525 is about 2646.0394932805. The cubic root of 7001525 is about 191.3070087926.

The spelling of 7001525 in words is "seven million, one thousand, five hundred twenty-five".

Divisors: 1 5 25 280061 1400305 7001525