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2775025 = 521110091
BaseRepresentation
bin1010100101011111110001
312012222121201
422211133301
51202300100
6135251201
732405311
oct12453761
95188551
102775025
111625a10
12b19b01
13762136
14523441
1539c36a
hex2a57f1

2775025 has 12 divisors (see below), whose sum is σ = 3754224. Its totient is φ = 2018000.

The previous prime is 2775011. The next prime is 2775041. The reversal of 2775025 is 5205772.

It is not a de Polignac number, because 2775025 - 27 = 2774897 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2774984 and 2775002.

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, 4771 + ... + 5320.

It is an arithmetic number, because the mean of its divisors is an integer number (312852).

22775025 is an apocalyptic number.

2775025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2775025 is a deficient number, since it is larger than the sum of its proper divisors (979199).

2775025 is a wasteful number, since it uses less digits than its factorization.

2775025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10112 (or 10107 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 28.

The square root of 2775025 is about 1665.8406286317. The cubic root of 2775025 is about 140.5256598820.

The spelling of 2775025 in words is "two million, seven hundred seventy-five thousand, twenty-five".

Divisors: 1 5 11 25 55 275 10091 50455 111001 252275 555005 2775025