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2581325 = 52791307
BaseRepresentation
bin1001110110001101001101
311212010220122
421312031031
51130100300
6131154325
730640505
oct11661515
94763818
102581325
11150342a
12a459a5
136c4c16
144b2a05
1535ec85
hex27634d

2581325 has 12 divisors (see below), whose sum is σ = 3243840. Its totient is φ = 2037360.

The previous prime is 2581289. The next prime is 2581349. The reversal of 2581325 is 5231852.

It is not a de Polignac number, because 2581325 - 28 = 2581069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2581294 and 2581303.

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, 1322 + ... + 2628.

It is an arithmetic number, because the mean of its divisors is an integer number (270320).

22581325 is an apocalyptic number.

2581325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2581325 is a deficient number, since it is larger than the sum of its proper divisors (662515).

2581325 is a wasteful number, since it uses less digits than its factorization.

2581325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396 (or 1391 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 2581325 is about 1606.6502419631. The cubic root of 2581325 is about 137.1768720914.

The spelling of 2581325 in words is "two million, five hundred eighty-one thousand, three hundred twenty-five".

Divisors: 1 5 25 79 395 1307 1975 6535 32675 103253 516265 2581325