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2213110525 = 52257344453
BaseRepresentation
bin1000001111101001…
…0110001011111101
312201020100122220111
42003322112023331
514013024014100
61003334350021
7105562062163
oct20372261375
95636318814
102213110525
11a3627476a
125191bb311
13293671c72
1416dcd1233
15ce45b6ba
hex83e962fd

2213110525 has 12 divisors (see below), whose sum is σ = 2754943092. Its totient is φ = 1763594240.

The previous prime is 2213110517. The next prime is 2213110651. The reversal of 2213110525 is 5250113122.

It can be written as a sum of positive squares in 6 ways, for example, as 19686969 + 2193423556 = 4437^2 + 46834^2 .

It is not a de Polignac number, because 2213110525 - 23 = 2213110517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2213110496 and 2213110505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165802 + ... + 178651.

It is an arithmetic number, because the mean of its divisors is an integer number (229578591).

Almost surely, 22213110525 is an apocalyptic number.

2213110525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2213110525 is a deficient number, since it is larger than the sum of its proper divisors (541832567).

2213110525 is a wasteful number, since it uses less digits than its factorization.

2213110525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344720 (or 344715 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 2213110525 is about 47043.7086654528. The cubic root of 2213110525 is about 1303.1698827098.

Adding to 2213110525 its reverse (5250113122), we get a palindrome (7463223647).

The spelling of 2213110525 in words is "two billion, two hundred thirteen million, one hundred ten thousand, five hundred twenty-five".

Divisors: 1 5 25 257 1285 6425 344453 1722265 8611325 88524421 442622105 2213110525