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42523375 = 531720011
BaseRepresentation
bin1010001000110…
…1101011101111
32222000102002211
42202031223233
541341222000
64115231251
71024304566
oct242155357
988012084
1042523375
1122004494
12122a8527
138a6b27b
14590cbdd
153aee7ba
hex288daef

42523375 has 16 divisors (see below), whose sum is σ = 56193696. Its totient is φ = 32016000.

The previous prime is 42523373. The next prime is 42523381. The reversal of 42523375 is 57332524.

It is not a de Polignac number, because 42523375 - 21 = 42523373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42523373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7881 + ... + 12130.

It is an arithmetic number, because the mean of its divisors is an integer number (3512106).

Almost surely, 242523375 is an apocalyptic number.

42523375 is a deficient number, since it is larger than the sum of its proper divisors (13670321).

42523375 is a wasteful number, since it uses less digits than its factorization.

42523375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20043 (or 20033 counting only the distinct ones).

The product of its digits is 25200, while the sum is 31.

The square root of 42523375 is about 6520.9949394245. The cubic root of 42523375 is about 349.0405696633.

Adding to 42523375 its reverse (57332524), we get a palindrome (99855899).

The spelling of 42523375 in words is "forty-two million, five hundred twenty-three thousand, three hundred seventy-five".

Divisors: 1 5 17 25 85 125 425 2125 20011 100055 340187 500275 1700935 2501375 8504675 42523375