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2215155425 = 52712658031
BaseRepresentation
bin1000010000001000…
…1001011011100001
312201101012112222112
42010002021123201
514014034433200
61003450245105
7105615340040
oct20402113341
95641175875
102215155425
11a3744106a
12519a26795
13293c09972
141702a4557
15ce712535
hex840896e1

2215155425 has 12 divisors (see below), whose sum is σ = 3139191936. Its totient is φ = 1518963600.

The previous prime is 2215155367. The next prime is 2215155431. The reversal of 2215155425 is 5245515122.

It is a happy number.

It is not a de Polignac number, because 2215155425 - 26 = 2215155361 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2215155391 and 2215155400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6328841 + ... + 6329190.

It is an arithmetic number, because the mean of its divisors is an integer number (261599328).

Almost surely, 22215155425 is an apocalyptic number.

2215155425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2215155425 is a deficient number, since it is larger than the sum of its proper divisors (924036511).

2215155425 is a wasteful number, since it uses less digits than its factorization.

2215155425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12658048 (or 12658043 counting only the distinct ones).

The product of its digits is 20000, while the sum is 32.

The square root of 2215155425 is about 47065.4376905177. The cubic root of 2215155425 is about 1303.5711327024.

The spelling of 2215155425 in words is "two billion, two hundred fifteen million, one hundred fifty-five thousand, four hundred twenty-five".

Divisors: 1 5 7 25 35 175 12658031 63290155 88606217 316450775 443031085 2215155425