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25237013 is a prime number
BaseRepresentation
bin110000001000…
…1011000010101
31202111011200012
41200101120111
522430041023
62300530005
7424340204
oct140213025
952434605
1025237013
1113277a3a
128550905
1352c8059
1434cd23b
152337978
hex1811615

25237013 has 2 divisors, whose sum is σ = 25237014. Its totient is φ = 25237012.

The previous prime is 25236983. The next prime is 25237033. The reversal of 25237013 is 31073252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17497489 + 7739524 = 4183^2 + 2782^2 .

It is a cyclic number.

It is not a de Polignac number, because 25237013 - 210 = 25235989 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25237013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25237033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12618506 + 12618507.

It is an arithmetic number, because the mean of its divisors is an integer number (12618507).

Almost surely, 225237013 is an apocalyptic number.

It is an amenable number.

25237013 is a deficient number, since it is larger than the sum of its proper divisors (1).

25237013 is an equidigital number, since it uses as much as digits as its factorization.

25237013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 25237013 is about 5023.6453895553. The cubic root of 25237013 is about 293.3229092657.

The spelling of 25237013 in words is "twenty-five million, two hundred thirty-seven thousand, thirteen".