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53125719 = 317708573
BaseRepresentation
bin1100101010101…
…0001001010111
310200222001210020
43022222021113
5102100010334
65134400223
71213363323
oct312521127
9120861706
1053125719
1127a96159
1215960073
13b01104a
1470ac983
1549e5e49
hex32aa257

53125719 has 4 divisors (see below), whose sum is σ = 70834296. Its totient is φ = 35417144.

The previous prime is 53125717. The next prime is 53125733. The reversal of 53125719 is 91752135.

53125719 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53125719 - 21 = 53125717 is a prime.

It is a super-2 number, since 2×531257192 = 5644684038533922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53125719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53125717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8854284 + ... + 8854289.

It is an arithmetic number, because the mean of its divisors is an integer number (17708574).

Almost surely, 253125719 is an apocalyptic number.

53125719 is a deficient number, since it is larger than the sum of its proper divisors (17708577).

53125719 is a wasteful number, since it uses less digits than its factorization.

53125719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17708576.

The product of its digits is 9450, while the sum is 33.

The square root of 53125719 is about 7288.7391913828. The cubic root of 53125719 is about 375.9253449752.

The spelling of 53125719 in words is "fifty-three million, one hundred twenty-five thousand, seven hundred nineteen".

Divisors: 1 3 17708573 53125719