5450315721 has 4 divisors (see below), whose sum is σ = 7267087632. Its totient is φ = 3633543812.

The previous prime is 5450315711. The next prime is 5450315723. The reversal of 5450315721 is 1275130545.

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 5450315721 - 2¹⁰ = 5450314697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5450315723) 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, 908385951 + ... + 908385956.

It is an arithmetic number, because the mean of its divisors is an integer number (1816771908).

Almost surely, 2^5450315721 is an apocalyptic number.

It is an amenable number.

5450315721 is a deficient number, since it is larger than the sum of its proper divisors (1816771911).

5450315721 is a wasteful number, since it uses less digits than its factorization.

5450315721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1816771910.

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 5450315721 is about 73826.2536026311. The cubic root of 5450315721 is about 1759.8428450629.

The spelling of 5450315721 in words is "five billion, four hundred fifty million, three hundred fifteen thousand, seven hundred twenty-one".