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12725533 = 59215687
BaseRepresentation
bin110000100010…
…110100011101
3212221112011001
4300202310131
511224204113
61132430301
7213110452
oct60426435
925845131
1012725533
117201977
124318391
132837302
141993829
1511b57dd
hexc22d1d

12725533 has 4 divisors (see below), whose sum is σ = 12941280. Its totient is φ = 12509788.

The previous prime is 12725513. The next prime is 12725551. The reversal of 12725533 is 33552721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12725533 - 25 = 12725501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12725513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107785 + ... + 107902.

It is an arithmetic number, because the mean of its divisors is an integer number (3235320).

Almost surely, 212725533 is an apocalyptic number.

It is an amenable number.

12725533 is a deficient number, since it is larger than the sum of its proper divisors (215747).

12725533 is an equidigital number, since it uses as much as digits as its factorization.

12725533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215746.

The product of its digits is 6300, while the sum is 28.

The square root of 12725533 is about 3567.2865037729. The cubic root of 12725533 is about 233.4669056078.

The spelling of 12725533 in words is "twelve million, seven hundred twenty-five thousand, five hundred thirty-three".

Divisors: 1 59 215687 12725533