2557026 has 12 divisors (see below), whose sum is σ = 5540262. Its totient is φ = 852336.

The previous prime is 2557013. The next prime is 2557063. The reversal of 2557026 is 6207552.

It can be written as a sum of positive squares in only one way, i.e., 2556801 + 225 = 1599^2 + 15^2 .

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71011 + ... + 71046.

2^2557026 is an apocalyptic number.

2557026 is an abundant number, since it is smaller than the sum of its proper divisors (2983236).

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

2557026 is a wasteful number, since it uses less digits than its factorization.

2557026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142065 (or 142062 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 2557026 is about 1599.0703549250. The cubic root of 2557026 is about 136.7450815776.

The spelling of 2557026 in words is "two million, five hundred fifty-seven thousand, twenty-six".