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25070261 = 67593631
BaseRepresentation
bin101111110100…
…0101010110101
31202011200221012
41133220222311
522404222021
62253202005
7423044066
oct137505265
952150835
1025070261
1113173727
128490305
13526a198
14348856d
15230335b
hex17e8ab5

25070261 has 8 divisors (see below), whose sum is σ = 25527744. Its totient is φ = 24615360.

The previous prime is 25070237. The next prime is 25070281. The reversal of 25070261 is 16207052.

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

It is a cyclic number.

It is not a de Polignac number, because 25070261 - 26 = 25070197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25070281) 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, 39416 + ... + 40046.

It is an arithmetic number, because the mean of its divisors is an integer number (3190968).

Almost surely, 225070261 is an apocalyptic number.

It is an amenable number.

25070261 is a deficient number, since it is larger than the sum of its proper divisors (457483).

25070261 is an equidigital number, since it uses as much as digits as its factorization.

25070261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 25070261 is about 5007.0211703167. The cubic root of 25070261 is about 292.6754434842.

The spelling of 25070261 in words is "twenty-five million, seventy thousand, two hundred sixty-one".

Divisors: 1 67 593 631 39731 42277 374183 25070261