12539055 has 8 divisors (see below), whose sum is σ = 20062512. Its totient is φ = 6687488.

The previous prime is 12539039. The next prime is 12539057. The reversal of 12539055 is 55093521.

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 12539055 - 2⁴ = 12539039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12539057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417954 + ... + 417983.

It is an arithmetic number, because the mean of its divisors is an integer number (2507814).

Almost surely, 2^12539055 is an apocalyptic number.

12539055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12539055 is a deficient number, since it is larger than the sum of its proper divisors (7523457).

12539055 is an equidigital number, since it uses as much as digits as its factorization.

12539055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835945.

The product of its (nonzero) digits is 6750, while the sum is 30.

The square root of 12539055 is about 3541.0528095469. The cubic root of 12539055 is about 232.3208933936.

The spelling of 12539055 in words is "twelve million, five hundred thirty-nine thousand, fifty-five".