2653272421 has 4 divisors (see below), whose sum is σ = 2698243200. Its totient is φ = 2608301644.

The previous prime is 2653272407. The next prime is 2653272451. The reversal of 2653272421 is 1242723562.

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 2653272421 - 2¹⁵ = 2653239653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2653272451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22485301 + ... + 22485418.

It is an arithmetic number, because the mean of its divisors is an integer number (674560800).

Almost surely, 2^2653272421 is an apocalyptic number.

It is an amenable number.

2653272421 is a deficient number, since it is larger than the sum of its proper divisors (44970779).

2653272421 is an equidigital number, since it uses as much as digits as its factorization.

2653272421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44970778.

The product of its digits is 40320, while the sum is 34.

The square root of 2653272421 is about 51509.9254610216. The cubic root of 2653272421 is about 1384.3968877237.

Adding to 2653272421 its reverse (1242723562), we get a palindrome (3895995983).

The spelling of 2653272421 in words is "two billion, six hundred fifty-three million, two hundred seventy-two thousand, four hundred twenty-one".