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25280153 is a prime number
BaseRepresentation
bin110000001101…
…1111010011001
31202120100211222
41200123322121
522432431103
62301501425
7424610033
oct140337231
952510758
1025280153
11132a7398
128571875
135311892
143500c53
152345638
hex181be99

25280153 has 2 divisors, whose sum is σ = 25280154. Its totient is φ = 25280152.

The previous prime is 25280137. The next prime is 25280179. The reversal of 25280153 is 35108252.

It is an a-pointer prime, because the next prime (25280179) can be obtained adding 25280153 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24482704 + 797449 = 4948^2 + 893^2 .

It is a cyclic number.

It is not a de Polignac number, because 25280153 - 24 = 25280137 is a prime.

It is a super-2 number, since 2×252801532 = 1278172271406818, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25280113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12640076 + 12640077.

It is an arithmetic number, because the mean of its divisors is an integer number (12640077).

Almost surely, 225280153 is an apocalyptic number.

It is an amenable number.

25280153 is a deficient number, since it is larger than the sum of its proper divisors (1).

25280153 is an equidigital number, since it uses as much as digits as its factorization.

25280153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 25280153 is about 5027.9372510007. The cubic root of 25280153 is about 293.4899489354.

The spelling of 25280153 in words is "twenty-five million, two hundred eighty thousand, one hundred fifty-three".