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25080080605 = 533857148153
BaseRepresentation
bin10111010110111000…
…111010100011011101
32101201212121002202021
4113112320322203131
5402331000034410
615304401100141
71545336111346
oct272670724335
971655532667
1025080080605
11a700062848
124a3b327651
132498cc44a8
1412dcc710cd
159bbc3eeda
hex5d6e3a8dd

25080080605 has 8 divisors (see below), whose sum is σ = 30097188792. Its totient is φ = 20063336448.

The previous prime is 25080080591. The next prime is 25080080621. The reversal of 25080080605 is 50608008052.

It can be written as a sum of positive squares in 4 ways, for example, as 11971204569 + 13108876036 = 109413^2 + 114494^2 .

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 25080080605 - 27 = 25080080477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95209 + ... + 243361.

It is an arithmetic number, because the mean of its divisors is an integer number (3762148599).

Almost surely, 225080080605 is an apocalyptic number.

It is an amenable number.

25080080605 is a deficient number, since it is larger than the sum of its proper divisors (5017108187).

25080080605 is a wasteful number, since it uses less digits than its factorization.

25080080605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182015.

The product of its (nonzero) digits is 19200, while the sum is 34.

Adding to 25080080605 its reverse (50608008052), we get a palindrome (75688088657).

The spelling of 25080080605 in words is "twenty-five billion, eighty million, eighty thousand, six hundred five".

Divisors: 1 5 33857 148153 169285 740765 5016016121 25080080605