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25050101 is a prime number
BaseRepresentation
bin101111110001…
…1101111110101
31202010200021112
41133203233311
522403100401
62252524405
7422631236
oct137435765
952120245
1025050101
111315a56a
128480705
135260c5b
14348108d
1522ec3bb
hex17e3bf5

25050101 has 2 divisors, whose sum is σ = 25050102. Its totient is φ = 25050100.

The previous prime is 25050097. The next prime is 25050119. The reversal of 25050101 is 10105052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21169201 + 3880900 = 4601^2 + 1970^2 .

It is a cyclic number.

It is not a de Polignac number, because 25050101 - 22 = 25050097 is a prime.

It is a super-2 number, since 2×250501012 = 1255015120220402, which contains 22 as substring.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25050001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12525050 + 12525051.

It is an arithmetic number, because the mean of its divisors is an integer number (12525051).

Almost surely, 225050101 is an apocalyptic number.

It is an amenable number.

25050101 is a deficient number, since it is larger than the sum of its proper divisors (1).

25050101 is an equidigital number, since it uses as much as digits as its factorization.

25050101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 25050101 is about 5005.0075924018. The cubic root of 25050101 is about 292.5969717681.

Adding to 25050101 its reverse (10105052), we get a palindrome (35155153).

The spelling of 25050101 in words is "twenty-five million, fifty thousand, one hundred one".