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57888225 = 3252257281
BaseRepresentation
bin1101110011010…
…0110111100001
311000221000201100
43130310313201
5104304410400
65424425013
71302020223
oct334646741
9130830640
1057888225
112a74930a
1217478169
13bcba9b5
14798c413
155137100
hex3734de1

57888225 has 18 divisors (see below), whose sum is σ = 103684646. Its totient is φ = 30873600.

The previous prime is 57888221. The next prime is 57888283. The reversal of 57888225 is 52288875.

It can be written as a sum of positive squares in 3 ways, for example, as 6561 + 57881664 = 81^2 + 7608^2 .

It is not a de Polignac number, because 57888225 - 22 = 57888221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57888221) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 128416 + ... + 128865.

Almost surely, 257888225 is an apocalyptic number.

It is an amenable number.

57888225 is a deficient number, since it is larger than the sum of its proper divisors (45796421).

57888225 is a wasteful number, since it uses less digits than its factorization.

57888225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257297 (or 257289 counting only the distinct ones).

The product of its digits is 358400, while the sum is 45.

The square root of 57888225 is about 7608.4311786333. The cubic root of 57888225 is about 386.8388448252.

The spelling of 57888225 in words is "fifty-seven million, eight hundred eighty-eight thousand, two hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 75 225 257281 771843 1286405 2315529 3859215 6432025 11577645 19296075 57888225