2553668 has 12 divisors (see below), whose sum is σ = 4812780. Its totient is φ = 1178592.

The previous prime is 2553659. The next prime is 2553671. The reversal of 2553668 is 8663552.

It can be written as a sum of positive squares in 2 ways, for example, as 386884 + 2166784 = 622^2 + 1472^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24503 + ... + 24606.

It is an arithmetic number, because the mean of its divisors is an integer number (401065).

2^2553668 is an apocalyptic number.

It is an amenable number.

2553668 is a deficient number, since it is larger than the sum of its proper divisors (2259112).

2553668 is a wasteful number, since it uses less digits than its factorization.

2553668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49126 (or 49124 counting only the distinct ones).

The product of its digits is 43200, while the sum is 35.

The square root of 2553668 is about 1598.0200249058. The cubic root of 2553668 is about 136.6851954520.

The spelling of 2553668 in words is "two million, five hundred fifty-three thousand, six hundred sixty-eight".