12501535501 has 8 divisors (see below), whose sum is σ = 15386505344. Its totient is φ = 9891324720.

The previous prime is 12501535489. The next prime is 12501535511. The reversal of 12501535501 is 10553510521.

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 12501535501 - 2¹⁵ = 12501502733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12501535501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12501535511) 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, 68689665 + ... + 68689846.

It is an arithmetic number, because the mean of its divisors is an integer number (1923313168).

Almost surely, 2^12501535501 is an apocalyptic number.

It is an amenable number.

12501535501 is a deficient number, since it is larger than the sum of its proper divisors (2884969843).

12501535501 is a wasteful number, since it uses less digits than its factorization.

12501535501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137379531.

The product of its (nonzero) digits is 3750, while the sum is 28.

The spelling of 12501535501 in words is "twelve billion, five hundred one million, five hundred thirty-five thousand, five hundred one".