4053002721 has 4 divisors (see below), whose sum is σ = 5404003632. Its totient is φ = 2702001812.

The previous prime is 4053002719. The next prime is 4053002731. The reversal of 4053002721 is 1272003504.

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 4053002721 - 2¹ = 4053002719 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4053002691 and 4053002700.

It is not an unprimeable number, because it can be changed into a prime (4053002731) 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, 675500451 + ... + 675500456.

It is an arithmetic number, because the mean of its divisors is an integer number (1351000908).

Almost surely, 2^4053002721 is an apocalyptic number.

It is an amenable number.

4053002721 is a deficient number, since it is larger than the sum of its proper divisors (1351000911).

4053002721 is a wasteful number, since it uses less digits than its factorization.

4053002721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351000910.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 4053002721 is about 63663.1975398660. The cubic root of 4053002721 is about 1594.3816906805.

The spelling of 4053002721 in words is "four billion, fifty-three million, two thousand, seven hundred twenty-one".