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53875689 = 374359663
BaseRepresentation
bin1100110110000…
…1001111101001
310202101011112220
43031201033221
5102243010224
65202424253
71222635660
oct315411751
9122334486
1053875689
112845866a
1216062089
13b21450a
147225dd7
154ae3279
hex33613e9

53875689 has 16 divisors (see below), whose sum is σ = 84006912. Its totient is φ = 30069648.

The previous prime is 53875651. The next prime is 53875691. The reversal of 53875689 is 98657835.

It is not a de Polignac number, because 53875689 - 28 = 53875433 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53875609) 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, 28929 + ... + 30734.

It is an arithmetic number, because the mean of its divisors is an integer number (5250432).

Almost surely, 253875689 is an apocalyptic number.

It is an amenable number.

53875689 is a deficient number, since it is larger than the sum of its proper divisors (30131223).

53875689 is a wasteful number, since it uses less digits than its factorization.

53875689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59716.

The product of its digits is 1814400, while the sum is 51.

The square root of 53875689 is about 7340.0060626678. The cubic root of 53875689 is about 377.6860512948.

The spelling of 53875689 in words is "fifty-three million, eight hundred seventy-five thousand, six hundred eighty-nine".

Divisors: 1 3 7 21 43 129 301 903 59663 178989 417641 1252923 2565509 7696527 17958563 53875689