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25030013 is a prime number
BaseRepresentation
bin101111101111…
…0110101111101
31202002122201112
41133132311331
522401430023
62252251405
7422515541
oct137366575
952078645
1025030013
1113146468
128470b65
135254a78
143477a21
1522e6478
hex17ded7d

25030013 has 2 divisors, whose sum is σ = 25030014. Its totient is φ = 25030012.

The previous prime is 25029959. The next prime is 25030043. The reversal of 25030013 is 31003052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25030009 + 4 = 5003^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 25030013 - 214 = 25013629 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25030013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25030043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12515006 + 12515007.

It is an arithmetic number, because the mean of its divisors is an integer number (12515007).

Almost surely, 225030013 is an apocalyptic number.

It is an amenable number.

25030013 is a deficient number, since it is larger than the sum of its proper divisors (1).

25030013 is an equidigital number, since it uses as much as digits as its factorization.

25030013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 25030013 is about 5003.0003997601. Note that the first 3 decimals coincide. The cubic root of 25030013 is about 292.5187384202.

Adding to 25030013 its reverse (31003052), we get a palindrome (56033065).

The spelling of 25030013 in words is "twenty-five million, thirty thousand, thirteen".