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25050431105 = 576111733223
BaseRepresentation
bin10111010101000111…
…110011111010000001
32101122210210202021122
4113111013303322001
5402300402243410
615301421402025
71544526102560
oct272507637201
971583722248
1025050431105
11a695351727
124a31409315
132492b12bcb
1412d8d53bd7
159b9334e55
hex5d51f3e81

25050431105 has 16 divisors (see below), whose sum is σ = 34918074624. Its totient is φ = 16895839680.

The previous prime is 25050431093. The next prime is 25050431111. The reversal of 25050431105 is 50113405052.

It is not a de Polignac number, because 25050431105 - 24 = 25050431089 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5864477 + ... + 5868746.

It is an arithmetic number, because the mean of its divisors is an integer number (2182379664).

Almost surely, 225050431105 is an apocalyptic number.

It is an amenable number.

25050431105 is a deficient number, since it is larger than the sum of its proper divisors (9867643519).

25050431105 is a wasteful number, since it uses less digits than its factorization.

25050431105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11733296.

The product of its (nonzero) digits is 3000, while the sum is 26.

Adding to 25050431105 its reverse (50113405052), we get a palindrome (75163836157).

The spelling of 25050431105 in words is "twenty-five billion, fifty million, four hundred thirty-one thousand, one hundred five".

Divisors: 1 5 7 35 61 305 427 2135 11733223 58666115 82132561 410662805 715726603 3578633015 5010086221 25050431105