4221564653 has 4 divisors (see below), whose sum is σ = 4224274080. Its totient is φ = 4218855228.

The previous prime is 4221564649. The next prime is 4221564671. The reversal of 4221564653 is 3564651224.

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 4221564653 - 2² = 4221564649 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 (4221564623) 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, 1352375 + ... + 1355492.

It is an arithmetic number, because the mean of its divisors is an integer number (1056068520).

Almost surely, 2^4221564653 is an apocalyptic number.

It is an amenable number.

4221564653 is a deficient number, since it is larger than the sum of its proper divisors (2709427).

4221564653 is a wasteful number, since it uses less digits than its factorization.

4221564653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2709426.

The product of its digits is 172800, while the sum is 38.

The square root of 4221564653 is about 64973.5688799684. The cubic root of 4221564653 is about 1616.1852849597.

The spelling of 4221564653 in words is "four billion, two hundred twenty-one million, five hundred sixty-four thousand, six hundred fifty-three".