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25120937 is a prime number
BaseRepresentation
bin101111111010…
…1000010101001
31202021021110002
41133311002221
522412332222
62254232345
7423344612
oct137650251
952237402
1025120937
11131a8806
1284b56b5
13528727a
14349cc09
152313392
hex17f50a9

25120937 has 2 divisors, whose sum is σ = 25120938. Its totient is φ = 25120936.

The previous prime is 25120871. The next prime is 25120939. The reversal of 25120937 is 73902152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25110121 + 10816 = 5011^2 + 104^2 .

It is a cyclic number.

It is not a de Polignac number, because 25120937 - 220 = 24072361 is a prime.

It is a super-2 number, since 2×251209372 = 1262122951515938, which contains 22 as substring.

Together with 25120939, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25120939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12560468 + 12560469.

It is an arithmetic number, because the mean of its divisors is an integer number (12560469).

Almost surely, 225120937 is an apocalyptic number.

It is an amenable number.

25120937 is a deficient number, since it is larger than the sum of its proper divisors (1).

25120937 is an equidigital number, since it uses as much as digits as its factorization.

25120937 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 25120937 is about 5012.0791095113. The cubic root of 25120937 is about 292.8725114849.

The spelling of 25120937 in words is "twenty-five million, one hundred twenty thousand, nine hundred thirty-seven".