2656003 has 12 divisors (see below), whose sum is σ = 3116080. Its totient is φ = 2217456.

The previous prime is 2655977. The next prime is 2656009. The reversal of 2656003 is 3006562.

It is not a de Polignac number, because 2656003 - 2¹⁷ = 2524931 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (2656009) 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, 24313 + ... + 24421.

2^2656003 is an apocalyptic number.

2656003 is a deficient number, since it is larger than the sum of its proper divisors (460077).

2656003 is an equidigital number, since it uses as much as digits as its factorization.

2656003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 2656003 is about 1629.7248233981. The cubic root of 2656003 is about 138.4871635938.

The spelling of 2656003 in words is "two million, six hundred fifty-six thousand, three".