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25014121 = 112274011
BaseRepresentation
bin101111101101…
…0111101101001
31202001211220221
41133122331221
522400422441
62252050041
7422421316
oct137327551
952054827
1025014121
1113135530
128463921
13524a772
143471d0d
1522e18d1
hex17daf69

25014121 has 4 divisors (see below), whose sum is σ = 27288144. Its totient is φ = 22740100.

The previous prime is 25014103. The next prime is 25014149. The reversal of 25014121 is 12141052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25014121 - 211 = 25012073 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25014095 and 25014104.

It is not an unprimeable number, because it can be changed into a prime (25014161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1136995 + ... + 1137016.

It is an arithmetic number, because the mean of its divisors is an integer number (6822036).

Almost surely, 225014121 is an apocalyptic number.

It is an amenable number.

25014121 is a deficient number, since it is larger than the sum of its proper divisors (2274023).

25014121 is a wasteful number, since it uses less digits than its factorization.

25014121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2274022.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 25014121 is about 5001.4119006537. The cubic root of 25014121 is about 292.4568168651.

Adding to 25014121 its reverse (12141052), we get a palindrome (37155173).

The spelling of 25014121 in words is "twenty-five million, fourteen thousand, one hundred twenty-one".

Divisors: 1 11 2274011 25014121