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25132541 = 723531453
BaseRepresentation
bin101111111011…
…1110111111101
31202021212100212
41133313313331
522413220131
62254402205
7423423500
oct137676775
952255325
1025132541
11132064a5
128500365
13528c635
1434a3137
152316a2b
hex17f7dfd

25132541 has 12 divisors (see below), whose sum is σ = 29338812. Its totient is φ = 21466368.

The previous prime is 25132529. The next prime is 25132553. The reversal of 25132541 is 14523152.

25132541 is nontrivially palindromic in base 2.

It is an interprime number because it is at equal distance from previous prime (25132529) and next prime (25132553).

It can be written as a sum of positive squares in 2 ways, for example, as 18957316 + 6175225 = 4354^2 + 2485^2 .

It is a de Polignac number, because none of the positive numbers 2k-25132541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25132501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16571 + ... + 18023.

It is an arithmetic number, because the mean of its divisors is an integer number (2444901).

Almost surely, 225132541 is an apocalyptic number.

It is an amenable number.

25132541 is a deficient number, since it is larger than the sum of its proper divisors (4206271).

25132541 is a wasteful number, since it uses less digits than its factorization.

25132541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820 (or 1813 counting only the distinct ones).

The product of its digits is 1200, while the sum is 23.

The square root of 25132541 is about 5013.2365792969. The cubic root of 25132541 is about 292.9175996316.

Adding to 25132541 its reverse (14523152), we get a palindrome (39655693).

The spelling of 25132541 in words is "twenty-five million, one hundred thirty-two thousand, five hundred forty-one".

Divisors: 1 7 49 353 1453 2471 10171 17297 71197 512909 3590363 25132541