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4536025 = 521317821
BaseRepresentation
bin10001010011011011011001
322112110020221
4101103123121
52130123100
6241120041
753361364
oct21233331
98473227
104536025
112618a8a
121629021
13c2a850
148610db
155e901a
hex4536d9

4536025 has 24 divisors (see below), whose sum is σ = 6421464. Its totient is φ = 3148800.

The previous prime is 4536023. The next prime is 4536029. The reversal of 4536025 is 5206354.

It can be written as a sum of positive squares in 12 ways, for example, as 1882384 + 2653641 = 1372^2 + 1629^2 .

It is not a de Polignac number, because 4536025 - 21 = 4536023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4536023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5115 + ... + 5935.

It is an arithmetic number, because the mean of its divisors is an integer number (267561).

Almost surely, 24536025 is an apocalyptic number.

It is an amenable number.

4536025 is a deficient number, since it is larger than the sum of its proper divisors (1885439).

4536025 is a wasteful number, since it uses less digits than its factorization.

4536025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861 (or 856 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 4536025 is about 2129.7945910345. The cubic root of 4536025 is about 165.5357546965.

The spelling of 4536025 in words is "four million, five hundred thirty-six thousand, twenty-five".

Divisors: 1 5 13 17 25 65 85 221 325 425 821 1105 4105 5525 10673 13957 20525 53365 69785 181441 266825 348925 907205 4536025