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2257025 = 5290281
BaseRepresentation
bin1000100111000010000001
311020200001112
420213002001
51034211100
6120213105
725120151
oct10470201
94220045
102257025
111301811
1290a195
13610424
1442a761
152e8b35
hex227081

2257025 has 6 divisors (see below), whose sum is σ = 2798742. Its totient is φ = 1805600.

The previous prime is 2257007. The next prime is 2257049. The reversal of 2257025 is 5207522.

It can be written as a sum of positive squares in 3 ways, for example, as 163216 + 2093809 = 404^2 + 1447^2 .

It is not a de Polignac number, because 2257025 - 216 = 2191489 is a prime.

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 (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45116 + ... + 45165.

It is an arithmetic number, because the mean of its divisors is an integer number (466457).

22257025 is an apocalyptic number.

2257025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2257025 is a deficient number, since it is larger than the sum of its proper divisors (541717).

2257025 is an equidigital number, since it uses as much as digits as its factorization.

2257025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90291 (or 90286 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 2257025 is about 1502.3398417136. The cubic root of 2257025 is about 131.1733036415.

The spelling of 2257025 in words is "two million, two hundred fifty-seven thousand, twenty-five".

Divisors: 1 5 25 90281 451405 2257025