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10531325 = 52728597
BaseRepresentation
bin101000001011…
…000111111101
3201211001021002
4220023013331
510144000300
61013420045
7155341400
oct50130775
921731232
1010531325
115a43382
12363a625
13224966c
141581d37
15dd05d5
hexa0b1fd

10531325 has 18 divisors (see below), whose sum is σ = 15192666. Its totient is φ = 7220640.

The previous prime is 10531319. The next prime is 10531333. The reversal of 10531325 is 52313501.

10531325 = 6372 + 6382 + ... + 6612.

It can be written as a sum of positive squares in 3 ways, for example, as 1301881 + 9229444 = 1141^2 + 3038^2 .

It is not a de Polignac number, because 10531325 - 28 = 10531069 is a prime.

It is a super-2 number, since 2×105313252 = 221817612511250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10531297 and 10531306.

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 3074 + ... + 5523.

It is an arithmetic number, because the mean of its divisors is an integer number (844037).

Almost surely, 210531325 is an apocalyptic number.

It is an amenable number.

10531325 is a deficient number, since it is larger than the sum of its proper divisors (4661341).

10531325 is an equidigital number, since it uses as much as digits as its factorization.

10531325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8621 (or 8609 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 10531325 is about 3245.2003019845. The cubic root of 10531325 is about 219.1935002268.

Adding to 10531325 its reverse (52313501), we get a palindrome (62844826).

The spelling of 10531325 in words is "ten million, five hundred thirty-one thousand, three hundred twenty-five".

Divisors: 1 5 7 25 35 49 175 245 1225 8597 42985 60179 214925 300895 421253 1504475 2106265 10531325