12512162533 has 4 divisors (see below), whose sum is σ = 13474636588. Its totient is φ = 11549688480.

The previous prime is 12512162527. The next prime is 12512162539. The reversal of 12512162533 is 33526121521.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12512162527) and next prime (12512162539).

It can be written as a sum of positive squares in 2 ways, for example, as 6742544769 + 5769617764 = 82113^2 + 75958^2 .

It is a cyclic number.

It is not a de Polignac number, because 12512162533 - 2⁵ = 12512162501 is a prime.

It is a super-2 number, since 2×12512162533² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12512162495 and 12512162504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12512162539) 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, 481237008 + ... + 481237033.

It is an arithmetic number, because the mean of its divisors is an integer number (3368659147).

Almost surely, 2^12512162533 is an apocalyptic number.

12512162533 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12512162533 is a deficient number, since it is larger than the sum of its proper divisors (962474055).

12512162533 is an equidigital number, since it uses as much as digits as its factorization.

12512162533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962474054.

The product of its digits is 10800, while the sum is 31.

The spelling of 12512162533 in words is "twelve billion, five hundred twelve million, one hundred sixty-two thousand, five hundred thirty-three".