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57065225 = 527326087
BaseRepresentation
bin1101100110101…
…1111100001001
310222101012202212
43121223330021
5104102041400
65355034505
71262021630
oct331537411
9128335685
1057065225
112a236a48
121713ba35
13ba90209
147816517
155023335
hex366bf09

57065225 has 12 divisors (see below), whose sum is σ = 80869824. Its totient is φ = 39130320.

The previous prime is 57065201. The next prime is 57065237. The reversal of 57065225 is 52256075.

It is not a de Polignac number, because 57065225 - 216 = 56999689 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57065191 and 57065200.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 162869 + ... + 163218.

It is an arithmetic number, because the mean of its divisors is an integer number (6739152).

Almost surely, 257065225 is an apocalyptic number.

It is an amenable number.

57065225 is a deficient number, since it is larger than the sum of its proper divisors (23804599).

57065225 is a wasteful number, since it uses less digits than its factorization.

57065225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326104 (or 326099 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 57065225 is about 7554.1528313902. The cubic root of 57065225 is about 384.9968516075.

The spelling of 57065225 in words is "fifty-seven million, sixty-five thousand, two hundred twenty-five".

Divisors: 1 5 7 25 35 175 326087 1630435 2282609 8152175 11413045 57065225