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85718725 = 526156209
BaseRepresentation
bin1010001101111…
…11011011000101
312222021221222121
411012333123011
5133420444400
612301125541
72060411551
oct506773305
9188257877
1085718725
1144427824
12248598b1
13149b3351
14b554861
1577d321a
hex51bf6c5

85718725 has 12 divisors (see below), whose sum is σ = 108035620. Its totient is φ = 67449600.

The previous prime is 85718687. The next prime is 85718761. The reversal of 85718725 is 52781758.

It can be written as a sum of positive squares in 6 ways, for example, as 8946081 + 76772644 = 2991^2 + 8762^2 .

It is not a de Polignac number, because 85718725 - 211 = 85716677 is a prime.

It is a congruent number.

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, 26580 + ... + 29629.

Almost surely, 285718725 is an apocalyptic number.

It is an amenable number.

85718725 is a deficient number, since it is larger than the sum of its proper divisors (22316895).

85718725 is a wasteful number, since it uses less digits than its factorization.

85718725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56280 (or 56275 counting only the distinct ones).

The product of its digits is 156800, while the sum is 43.

The square root of 85718725 is about 9258.4407434514. The cubic root of 85718725 is about 440.9187500179.

The spelling of 85718725 in words is "eighty-five million, seven hundred eighteen thousand, seven hundred twenty-five".

Divisors: 1 5 25 61 305 1525 56209 281045 1405225 3428749 17143745 85718725