12548590021 has 8 divisors (see below), whose sum is σ = 13696182144. Its totient is φ = 11402133120.

The previous prime is 12548590003. The next prime is 12548590027. The reversal of 12548590021 is 12009584521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12548590021 is a prime.

It is a super-2 number, since 2×12548590021² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12548590027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260605 + ... + 304978.

It is an arithmetic number, because the mean of its divisors is an integer number (1712022768).

Almost surely, 2^12548590021 is an apocalyptic number.

12548590021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12548590021 is a deficient number, since it is larger than the sum of its proper divisors (1147592123).

12548590021 is a wasteful number, since it uses less digits than its factorization.

12548590021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567611.

The product of its (nonzero) digits is 28800, while the sum is 37.

The spelling of 12548590021 in words is "twelve billion, five hundred forty-eight million, five hundred ninety thousand, twenty-one".