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85625901 = 329513989
BaseRepresentation
bin1010001101010…
…00110000101101
312222010020122200
411012220300231
5133410012101
612255132113
72056544124
oct506506055
9188106580
1085625901
1144374009
1224814039
131498001a
14b52cabb
1577b5986
hex51a8c2d

85625901 has 6 divisors (see below), whose sum is σ = 123681870. Its totient is φ = 57083928.

The previous prime is 85625887. The next prime is 85625977. The reversal of 85625901 is 10952658.

It is a happy number.

85625901 is a `hidden beast` number, since 8 + 5 + 62 + 590 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 69705801 + 15920100 = 8349^2 + 3990^2 .

It is not a de Polignac number, because 85625901 - 215 = 85593133 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85625201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4756986 + ... + 4757003.

It is an arithmetic number, because the mean of its divisors is an integer number (20613645).

Almost surely, 285625901 is an apocalyptic number.

It is an amenable number.

85625901 is a deficient number, since it is larger than the sum of its proper divisors (38055969).

85625901 is a wasteful number, since it uses less digits than its factorization.

85625901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9513995 (or 9513992 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 85625901 is about 9253.4264464575. The cubic root of 85625901 is about 440.7595369466.

The spelling of 85625901 in words is "eighty-five million, six hundred twenty-five thousand, nine hundred one".

Divisors: 1 3 9 9513989 28541967 85625901