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125108225 = 52112811619
BaseRepresentation
bin1110111010100…
…00000000000001
322201102011012222
413131100000001
5224011430400
620225300425
73046255004
oct735200001
9281364188
10125108225
1164690730
1235a94715
131cbc5048
141288953b
15aeb4185
hex7750001

125108225 has 24 divisors (see below), whose sum is σ = 169944480. Its totient is φ = 90608000.

The previous prime is 125108213. The next prime is 125108227. The reversal of 125108225 is 522801521.

It is not a de Polignac number, because 125108225 - 210 = 125107201 is a prime.

125108225 is a modest number, since divided by 108225 gives 125 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 125108194 and 125108203.

It is not an unprimeable number, because it can be changed into a prime (125108227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76466 + ... + 78084.

It is an arithmetic number, because the mean of its divisors is an integer number (7081020).

It is a Proth number, since it is equal to 1909 ⋅ 216 + 1 and 1909 < 216.

Almost surely, 2125108225 is an apocalyptic number.

It is an amenable number.

125108225 is a deficient number, since it is larger than the sum of its proper divisors (44836255).

125108225 is a wasteful number, since it uses less digits than its factorization.

125108225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1921 (or 1916 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 125108225 is about 11185.1788094782. The cubic root of 125108225 is about 500.1442583750.

Adding to 125108225 its reverse (522801521), we get a palindrome (647909746).

The spelling of 125108225 in words is "one hundred twenty-five million, one hundred eight thousand, two hundred twenty-five".

Divisors: 1 5 11 25 55 275 281 1405 1619 3091 7025 8095 15455 17809 40475 77275 89045 445225 454939 2274695 5004329 11373475 25021645 125108225