2572856 has 48 divisors (see below), whose sum is σ = 5731560. Its totient is φ = 1073280.

The previous prime is 2572811. The next prime is 2572859. The reversal of 2572856 is 6582752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2572859) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14786 + ... + 14958.

2^2572856 is an apocalyptic number.

2572856 is a gapful number since it is divisible by the number (26) 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 2572856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2865780).

2572856 is an abundant number, since it is smaller than the sum of its proper divisors (3158704).

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

2572856 is a wasteful number, since it uses less digits than its factorization.

2572856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 199 counting only the distinct ones).

The product of its digits is 33600, while the sum is 35.

The square root of 2572856 is about 1604.0124687795. The cubic root of 2572856 is about 137.0266877520.

It can be divided in two parts, 257 and 2856, that added together give a palindrome (3113).

The spelling of 2572856 in words is "two million, five hundred seventy-two thousand, eight hundred fifty-six".