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25275230005 = 57171197831
BaseRepresentation
bin10111100010100001…
…010110011100110101
32102020110210201101211
4113202201112130311
5403230424330010
615340011521421
71553225624134
oct274241263465
972213721354
1025275230005
11a7a0232443
124a94759271
1324ca5709cc
14131ab4d91b
159cde3c08a
hex5e2856735

25275230005 has 8 divisors (see below), whose sum is σ = 30757463424. Its totient is φ = 19935392400.

The previous prime is 25275229981. The next prime is 25275230009. The reversal of 25275230005 is 50003257252.

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

It is not a de Polignac number, because 25275230005 - 29 = 25275229493 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 (25275230009) 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, 35598561 + ... + 35599270.

It is an arithmetic number, because the mean of its divisors is an integer number (3844682928).

Almost surely, 225275230005 is an apocalyptic number.

It is an amenable number.

25275230005 is a deficient number, since it is larger than the sum of its proper divisors (5482233419).

25275230005 is an equidigital number, since it uses as much as digits as its factorization.

25275230005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71197907.

The product of its (nonzero) digits is 21000, while the sum is 31.

Adding to 25275230005 its reverse (50003257252), we get a palindrome (75278487257).

The spelling of 25275230005 in words is "twenty-five billion, two hundred seventy-five million, two hundred thirty thousand, five".

Divisors: 1 5 71 355 71197831 355989155 5055046001 25275230005