2557326 has 16 divisors (see below), whose sum is σ = 5173200. Its totient is φ = 842688.

The previous prime is 2557297. The next prime is 2557333. The reversal of 2557326 is 6237552.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁷ + 5⁷ + 5⁷ + 7⁴ + 3¹³ + 2¹⁹ + 6⁷ .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2557293 and 2557302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1861 + ... + 2928.

It is an arithmetic number, because the mean of its divisors is an integer number (323325).

2^2557326 is an apocalyptic number.

2557326 is an abundant number, since it is smaller than the sum of its proper divisors (2615874).

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

2557326 is a wasteful number, since it uses less digits than its factorization.

2557326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4883.

The product of its digits is 12600, while the sum is 30.

The square root of 2557326 is about 1599.1641566769. The cubic root of 2557326 is about 136.7504291858.

The spelling of 2557326 in words is "two million, five hundred fifty-seven thousand, three hundred twenty-six".