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85625805 = 3545712491
BaseRepresentation
bin1010001101010…
…00101111001101
312222010020112010
411012220233031
5133410011210
612255131433
72056543626
oct506505715
9188106463
1085625805
1144373a31
1224813b79
131497cc75
14b52ca4d
1577b5920
hex51a8bcd

85625805 has 16 divisors (see below), whose sum is σ = 137312064. Its totient is φ = 45563520.

The previous prime is 85625783. The next prime is 85625819. The reversal of 85625805 is 50852658.

It is not a de Polignac number, because 85625805 - 26 = 85625741 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 610 + ... + 13100.

It is an arithmetic number, because the mean of its divisors is an integer number (8582004).

Almost surely, 285625805 is an apocalyptic number.

It is an amenable number.

85625805 is a deficient number, since it is larger than the sum of its proper divisors (51686259).

85625805 is a wasteful number, since it uses less digits than its factorization.

85625805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12956.

The product of its (nonzero) digits is 96000, while the sum is 39.

The square root of 85625805 is about 9253.4212591884. The cubic root of 85625805 is about 440.7593722265.

The spelling of 85625805 in words is "eighty-five million, six hundred twenty-five thousand, eight hundred five".

Divisors: 1 3 5 15 457 1371 2285 6855 12491 37473 62455 187365 5708387 17125161 28541935 85625805