12535516 has 24 divisors (see below), whose sum is σ = 26391680. Its totient is φ = 5089392.

The previous prime is 12535513. The next prime is 12535531. The reversal of 12535516 is 61553521.

12535516 is nontrivially palindromic in base 12.

It is a super-2 number, since 2×12535516² = 314278322772512, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12535513) 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, 11250 + ... + 12313.

Almost surely, 2^12535516 is an apocalyptic number.

It is an amenable number.

12535516 is an abundant number, since it is smaller than the sum of its proper divisors (13856164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12535516 is a wasteful number, since it uses less digits than its factorization.

12535516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23593 (or 23591 counting only the distinct ones).

The product of its digits is 4500, while the sum is 28.

The square root of 12535516 is about 3540.5530641413. The cubic root of 12535516 is about 232.2990347287.

The spelling of 12535516 in words is "twelve million, five hundred thirty-five thousand, five hundred sixteen".