12858552 has 96 divisors (see below), whose sum is σ = 41134080. Its totient is φ = 3551040.

The previous prime is 12858533. The next prime is 12858553. The reversal of 12858552 is 25585821.

12858552 is a `hidden beast` number, since 1 + 28 + 585 + 52 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12858553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15213 + ... + 16035.

It is an arithmetic number, because the mean of its divisors is an integer number (428480).

Almost surely, 2^12858552 is an apocalyptic number.

12858552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12858552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20567040).

12858552 is an abundant number, since it is smaller than the sum of its proper divisors (28275528).

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

12858552 is a wasteful number, since it uses less digits than its factorization.

12858552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873 (or 866 counting only the distinct ones).

The product of its digits is 32000, while the sum is 36.

The square root of 12858552 is about 3585.8823182029. The cubic root of 12858552 is about 234.2775580005.

The spelling of 12858552 in words is "twelve million, eight hundred fifty-eight thousand, five hundred fifty-two".