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25551387041 = 791791806901
BaseRepresentation
bin10111110010111110…
…110011100110100001
32102221201102221122012
4113302332303212201
5404312123341131
615423234522305
71563121130525
oct276276634641
972851387565
1025551387041
11a9221012a4
124b51136395
13254284113b
1413456b7d85
159e82db52b
hex5f2fb39a1

25551387041 has 8 divisors (see below), whose sum is σ = 26019388800. Its totient is φ = 25086999600.

The previous prime is 25551387011. The next prime is 25551387047. The reversal of 25551387041 is 14078315552.

It is a happy number.

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 25551387041 - 26 = 25551386977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25551387041.

It is not an unprimeable number, because it can be changed into a prime (25551387047) 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, 889310 + ... + 917591.

It is an arithmetic number, because the mean of its divisors is an integer number (3252423600).

Almost surely, 225551387041 is an apocalyptic number.

It is an amenable number.

25551387041 is a deficient number, since it is larger than the sum of its proper divisors (468001759).

25551387041 is a wasteful number, since it uses less digits than its factorization.

25551387041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1807159.

The product of its (nonzero) digits is 168000, while the sum is 41.

The spelling of 25551387041 in words is "twenty-five billion, five hundred fifty-one million, three hundred eighty-seven thousand, forty-one".

Divisors: 1 79 179 14141 1806901 142745179 323435279 25551387041