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13425251425 = 521997733491
BaseRepresentation
bin11001000000011010…
…10001010001100001
31021122121222102202021
430200031101101201
5204443331021200
610100101421441
7653455516465
oct144015212141
937577872667
1013425251425
11576a228113
12272810a881
13135c514a71
149150244a5
1553895241a
hex320351461

13425251425 has 24 divisors (see below), whose sum is σ = 16757409600. Its totient is φ = 10669348800.

The previous prime is 13425251423. The next prime is 13425251449. The reversal of 13425251425 is 52415252431.

It is a happy number.

It is not a de Polignac number, because 13425251425 - 21 = 13425251423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13425251423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3843930 + ... + 3847420.

It is an arithmetic number, because the mean of its divisors is an integer number (698225400).

Almost surely, 213425251425 is an apocalyptic number.

It is an amenable number.

13425251425 is a deficient number, since it is larger than the sum of its proper divisors (3332158175).

13425251425 is a wasteful number, since it uses less digits than its factorization.

13425251425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4473 (or 4468 counting only the distinct ones).

The product of its digits is 48000, while the sum is 34.

The spelling of 13425251425 in words is "thirteen billion, four hundred twenty-five million, two hundred fifty-one thousand, four hundred twenty-five".

Divisors: 1 5 25 199 773 995 3491 3865 4975 17455 19325 87275 153827 694709 769135 2698543 3473545 3845675 13492715 17367725 67463575 537010057 2685050285 13425251425