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25531041 = 3193071459
BaseRepresentation
bin110000101100…
…1001010100001
31210001010000010
41201121022201
523013443131
62311115133
7430003344
oct141311241
953033003
1025531041
1113458938
128672aa9
13539bb33
14356845b
152394b46
hex18592a1

25531041 has 16 divisors (see below), whose sum is σ = 35974400. Its totient is φ = 16061328.

The previous prime is 25531039. The next prime is 25531043. The reversal of 25531041 is 14013552.

It is an interprime number because it is at equal distance from previous prime (25531039) and next prime (25531043).

It is not a de Polignac number, because 25531041 - 21 = 25531039 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25530999 and 25531017.

It is not an unprimeable number, because it can be changed into a prime (25531043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16770 + ... + 18228.

It is an arithmetic number, because the mean of its divisors is an integer number (2248400).

Almost surely, 225531041 is an apocalyptic number.

It is an amenable number.

25531041 is a deficient number, since it is larger than the sum of its proper divisors (10443359).

25531041 is a wasteful number, since it uses less digits than its factorization.

25531041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1788.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 25531041 is about 5052.8250513945. The cubic root of 25531041 is about 294.4576494955.

Adding to 25531041 its reverse (14013552), we get a palindrome (39544593).

The spelling of 25531041 in words is "twenty-five million, five hundred thirty-one thousand, forty-one".

Divisors: 1 3 19 57 307 921 1459 4377 5833 17499 27721 83163 447913 1343739 8510347 25531041