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12251153125 = 5525115619
BaseRepresentation
bin10110110100011100…
…11100001011100101
31011121210201001200001
423122032130023211
5200042243400000
65343400421301
7612411040411
oct133216341345
934553631601
1012251153125
115217502742
12245aa77831
1312031bc043
14843117d41
154ba83146a
hex2da39c2e5

12251153125 has 24 divisors (see below), whose sum is σ = 15374953440. Its totient is φ = 9761250000.

The previous prime is 12251153099. The next prime is 12251153179. The reversal of 12251153125 is 52135115221.

It is a happy number.

It is not a de Polignac number, because 12251153125 - 25 = 12251153093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12251153093 and 12251153102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 776566 + ... + 792184.

It is an arithmetic number, because the mean of its divisors is an integer number (640623060).

Almost surely, 212251153125 is an apocalyptic number.

It is an amenable number.

12251153125 is a deficient number, since it is larger than the sum of its proper divisors (3123800315).

12251153125 is an frugal number, since it uses more digits than its factorization.

12251153125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15895 (or 15875 counting only the distinct ones).

The product of its digits is 3000, while the sum is 28.

Adding to 12251153125 its reverse (52135115221), we get a palindrome (64386268346).

The spelling of 12251153125 in words is "twelve billion, two hundred fifty-one million, one hundred fifty-three thousand, one hundred twenty-five".

Divisors: 1 5 25 125 251 625 1255 3125 6275 15619 31375 78095 156875 390475 784375 1952375 3920369 9761875 19601845 48809375 98009225 490046125 2450230625 12251153125