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25254161 = 238313229
BaseRepresentation
bin110000001010…
…1100100010001
31202112001012022
41200111210101
522431113121
62301141225
7424441202
oct140254421
952461168
1025254161
1113289909
12855a815
135302aba
1434d55a9
15233caab
hex1815911

25254161 has 8 divisors (see below), whose sum is σ = 26671680. Its totient is φ = 23863312.

The previous prime is 25254143. The next prime is 25254179. The reversal of 25254161 is 16145252.

It is an interprime number because it is at equal distance from previous prime (25254143) and next prime (25254179).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-25254161 is a prime.

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

It is a Duffinian number.

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 25254161.

It is not an unprimeable number, because it can be changed into a prime (25254191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4706 + ... + 8523.

It is an arithmetic number, because the mean of its divisors is an integer number (3333960).

Almost surely, 225254161 is an apocalyptic number.

It is an amenable number.

25254161 is a deficient number, since it is larger than the sum of its proper divisors (1417519).

25254161 is a wasteful number, since it uses less digits than its factorization.

25254161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13335.

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

The square root of 25254161 is about 5025.3518284793. The cubic root of 25254161 is about 293.3893297310.

The spelling of 25254161 in words is "twenty-five million, two hundred fifty-four thousand, one hundred sixty-one".

Divisors: 1 23 83 1909 13229 304267 1098007 25254161