2656633 has 6 divisors (see below), whose sum is σ = 3090426. Its totient is φ = 2277072.

The previous prime is 2656627. The next prime is 2656639. The reversal of 2656633 is 3366562.

It is an interprime number because it is at equal distance from previous prime (2656627) and next prime (2656639).

It can be written as a sum of positive squares in only one way, i.e., 1750329 + 906304 = 1323^2 + 952^2 .

It is not a de Polignac number, because 2656633 - 2⁵ = 2656601 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2656595 and 2656604.

It is not an unprimeable number, because it can be changed into a prime (2656639) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27060 + ... + 27157.

It is an arithmetic number, because the mean of its divisors is an integer number (515071).

2^2656633 is an apocalyptic number.

It is an amenable number.

2656633 is a deficient number, since it is larger than the sum of its proper divisors (433793).

2656633 is an equidigital number, since it uses as much as digits as its factorization.

2656633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54231 (or 54224 counting only the distinct ones).

The product of its digits is 19440, while the sum is 31.

The square root of 2656633 is about 1629.9180961018. The cubic root of 2656633 is about 138.4981123785.

It can be divided in two parts, 26566 and 33, that multiplied together give a palindrome (876678).

The spelling of 2656633 in words is "two million, six hundred fifty-six thousand, six hundred thirty-three".