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7025625 = 32541249
BaseRepresentation
bin11010110011001111011001
3111012221100100
4122303033121
53244310000
6410330013
7113500605
oct32631731
914187310
107025625
113a69502
122429909
1315bca99
14d0c505
1593ba00
hex6b33d9

7025625 has 30 divisors (see below), whose sum is σ = 12691250. Its totient is φ = 3744000.

The previous prime is 7025621. The next prime is 7025633. The reversal of 7025625 is 5265207.

It can be written as a sum of positive squares in 5 ways, for example, as 3069504 + 3956121 = 1752^2 + 1989^2 .

It is not a de Polignac number, because 7025625 - 22 = 7025621 is a prime.

It is a Curzon number.

7025625 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7025621) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 5001 + ... + 6249.

Almost surely, 27025625 is an apocalyptic number.

7025625 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7025625 is a deficient number, since it is larger than the sum of its proper divisors (5665625).

7025625 is a wasteful number, since it uses less digits than its factorization.

7025625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275 (or 1257 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 7025625 is about 2650.5895570608. The cubic root of 7025625 is about 191.5262571736.

The spelling of 7025625 in words is "seven million, twenty-five thousand, six hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 75 125 225 375 625 1125 1249 1875 3747 5625 6245 11241 18735 31225 56205 93675 156125 281025 468375 780625 1405125 2341875 7025625