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25032881 is a prime number
BaseRepresentation
bin101111101111…
…1100010110001
31202002210122202
41133133202301
522402023011
62252312545
7422530106
oct137374261
952083582
1025032881
1113148635
128472755
135256173
143478aad
1522e723b
hex17df8b1

25032881 has 2 divisors, whose sum is σ = 25032882. Its totient is φ = 25032880.

The previous prime is 25032877. The next prime is 25032893. The reversal of 25032881 is 18823052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22886656 + 2146225 = 4784^2 + 1465^2 .

It is a cyclic number.

It is not a de Polignac number, because 25032881 - 22 = 25032877 is a prime.

It is a super-2 number, since 2×250328812 = 1253290262320322, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (25032781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12516440 + 12516441.

It is an arithmetic number, because the mean of its divisors is an integer number (12516441).

Almost surely, 225032881 is an apocalyptic number.

It is an amenable number.

25032881 is a deficient number, since it is larger than the sum of its proper divisors (1).

25032881 is an equidigital number, since it uses as much as digits as its factorization.

25032881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 25032881 is about 5003.2870195502. The cubic root of 25032881 is about 292.5299104972.

The spelling of 25032881 in words is "twenty-five million, thirty-two thousand, eight hundred eighty-one".