12501611 has 4 divisors (see below), whose sum is σ = 12578472. Its totient is φ = 12424752.

The previous prime is 12501607. The next prime is 12501617. The reversal of 12501611 is 11610521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11610521 = 13 ⋅893117.

It is a cyclic number.

It is not a de Polignac number, because 12501611 - 2² = 12501607 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12501611.

It is not an unprimeable number, because it can be changed into a prime (12501617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38186 + ... + 38511.

It is an arithmetic number, because the mean of its divisors is an integer number (3144618).

Almost surely, 2^12501611 is an apocalyptic number.

12501611 is a deficient number, since it is larger than the sum of its proper divisors (76861).

12501611 is an equidigital number, since it uses as much as digits as its factorization.

12501611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76860.

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 12501611 is about 3535.7617283974. The cubic root of 12501611 is about 232.0894113852.

The spelling of 12501611 in words is "twelve million, five hundred one thousand, six hundred eleven".