2553653 has 8 divisors (see below), whose sum is σ = 2662200. Its totient is φ = 2446528.

The previous prime is 2553647. The next prime is 2553659. The reversal of 2553653 is 3563552.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2553647) and next prime (2553659).

It can be written as a sum of positive squares in 4 ways, for example, as 1350244 + 1203409 = 1162^2 + 1097^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2553653 - 2⁴ = 2553637 is a prime.

It is a super-2 number, since 2×2553653² = 13042287288818, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a d-powerful number, because it can be written as 2²¹ + 5² + 5² + 3⁸ + 6³ + 5⁸ + 3¹⁰ .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2553659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4763 + ... + 5271.

It is an arithmetic number, because the mean of its divisors is an integer number (332775).

2^2553653 is an apocalyptic number.

It is an amenable number.

2553653 is a deficient number, since it is larger than the sum of its proper divisors (108547).

2553653 is a wasteful number, since it uses less digits than its factorization.

2553653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711.

The product of its digits is 13500, while the sum is 29.

The square root of 2553653 is about 1598.0153315910. The cubic root of 2553653 is about 136.6849278262.

The spelling of 2553653 in words is "two million, five hundred fifty-three thousand, six hundred fifty-three".