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1955225 = 52197397
BaseRepresentation
bin111011101010110011001
310200100001202
413131112121
51000031400
6105523545
722422236
oct7352631
93610052
101955225
111115a98
127a35b5
13535c4c
1438c78d
152894d5
hex1dd599

1955225 has 12 divisors (see below), whose sum is σ = 2442924. Its totient is φ = 1552320.

The previous prime is 1955203. The next prime is 1955237. The reversal of 1955225 is 5225591.

It can be written as a sum of positive squares in 6 ways, for example, as 135424 + 1819801 = 368^2 + 1349^2 .

It is not a de Polignac number, because 1955225 - 216 = 1889689 is a prime.

It is a d-powerful number, because it can be written as 1 + 9 + 5 + 5 + 25 + 211 + 59 .

It is a Duffinian number.

It is a Curzon 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 11 ways as a sum of consecutive naturals, for example, 4727 + ... + 5123.

It is an arithmetic number, because the mean of its divisors is an integer number (203577).

21955225 is an apocalyptic number.

It is an amenable number.

1955225 is a deficient number, since it is larger than the sum of its proper divisors (487699).

1955225 is a wasteful number, since it uses less digits than its factorization.

1955225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604 (or 599 counting only the distinct ones).

The product of its digits is 4500, while the sum is 29.

The square root of 1955225 is about 1398.2936029318. The cubic root of 1955225 is about 125.0447839533.

The spelling of 1955225 in words is "one million, nine hundred fifty-five thousand, two hundred twenty-five".

Divisors: 1 5 25 197 397 985 1985 4925 9925 78209 391045 1955225