12520426633 has 32 divisors (see below), whose sum is σ = 15129313920. Its totient is φ = 10207503360.

The previous prime is 12520426603. The next prime is 12520426663. The reversal of 12520426633 is 33662402521.

It is an interprime number because it is at equal distance from previous prime (12520426603) and next prime (12520426663).

It is a cyclic number.

It is not a de Polignac number, because 12520426633 - 2⁵ = 12520426601 is a prime.

It is a super-2 number, since 2×12520426633² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12520426603) 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, 4797633 + ... + 4800241.

It is an arithmetic number, because the mean of its divisors is an integer number (472791060).

Almost surely, 2^12520426633 is an apocalyptic number.

12520426633 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12520426633 is a deficient number, since it is larger than the sum of its proper divisors (2608887287).

12520426633 is a wasteful number, since it uses less digits than its factorization.

12520426633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3577.

The product of its (nonzero) digits is 51840, while the sum is 34.

The spelling of 12520426633 in words is "twelve billion, five hundred twenty million, four hundred twenty-six thousand, six hundred thirty-three".