12725655 has 16 divisors (see below), whose sum is σ = 21018624. Its totient is φ = 6567840.

The previous prime is 12725653. The next prime is 12725659. The reversal of 12725655 is 55652721.

12725655 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12725655 - 2¹ = 12725653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12725653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13219 + ... + 14148.

It is an arithmetic number, because the mean of its divisors is an integer number (1313664).

Almost surely, 2^12725655 is an apocalyptic number.

12725655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12725655 is a deficient number, since it is larger than the sum of its proper divisors (8292969).

12725655 is a wasteful number, since it uses less digits than its factorization.

12725655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27406.

The product of its digits is 21000, while the sum is 33.

The square root of 12725655 is about 3567.3036035639. The cubic root of 12725655 is about 233.4676516897.

The spelling of 12725655 in words is "twelve million, seven hundred twenty-five thousand, six hundred fifty-five".