2153553 has 4 divisors (see below), whose sum is σ = 2871408. Its totient is φ = 1435700.

The previous prime is 2153551. The next prime is 2153561. The reversal of 2153553 is 3553512.

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 2153553 - 2¹ = 2153551 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2153551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 358923 + ... + 358928.

It is an arithmetic number, because the mean of its divisors is an integer number (717852).

2^2153553 is an apocalyptic number.

It is an amenable number.

2153553 is a deficient number, since it is larger than the sum of its proper divisors (717855).

2153553 is an equidigital number, since it uses as much as digits as its factorization.

2153553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717854.

The product of its digits is 2250, while the sum is 24.

The square root of 2153553 is about 1467.4988926742. The cubic root of 2153553 is about 129.1373454546.

The spelling of 2153553 in words is "two million, one hundred fifty-three thousand, five hundred fifty-three".