2656253 has 4 divisors (see below), whose sum is σ = 2662848. Its totient is φ = 2649660.

The previous prime is 2656243. The next prime is 2656261. The reversal of 2656253 is 3526562.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2656253 - 2⁶ = 2656189 is a prime.

It is a d-powerful number, because it can be written as 2⁴ + 6³ + 5⁸ + 6⁷ + 2⁹ + 5⁸ + 3¹³ .

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2656243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2651 + ... + 3512.

It is an arithmetic number, because the mean of its divisors is an integer number (665712).

2^2656253 is an apocalyptic number.

It is an amenable number.

2656253 is a deficient number, since it is larger than the sum of its proper divisors (6595).

2656253 is an equidigital number, since it uses as much as digits as its factorization.

2656253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6594.

The product of its digits is 10800, while the sum is 29.

The square root of 2656253 is about 1629.8015216584. The cubic root of 2656253 is about 138.4915085568.

The spelling of 2656253 in words is "two million, six hundred fifty-six thousand, two hundred fifty-three".