12533505 has 32 divisors (see below), whose sum is σ = 22166784. Its totient is φ = 6014976.

The previous prime is 12533501. The next prime is 12533509. The reversal of 12533505 is 50533521.

It is an interprime number because it is at equal distance from previous prime (12533501) and next prime (12533509).

It is not a de Polignac number, because 12533505 - 2² = 12533501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12533501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4797 + ... + 6933.

It is an arithmetic number, because the mean of its divisors is an integer number (692712).

Almost surely, 2^12533505 is an apocalyptic number.

12533505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12533505 is a deficient number, since it is larger than the sum of its proper divisors (9633279).

12533505 is a wasteful number, since it uses less digits than its factorization.

12533505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2185.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 12533505 is about 3540.2690575718. The cubic root of 12533505 is about 232.2866119362.

The spelling of 12533505 in words is "twelve million, five hundred thirty-three thousand, five hundred five".