5607456721 has 4 divisors (see below), whose sum is σ = 5609057344. Its totient is φ = 5605856100.

The previous prime is 5607456709. The next prime is 5607456727. The reversal of 5607456721 is 1276547065.

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 5607456721 - 2⁷ = 5607456593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5607456727) 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, 795045 + ... + 802066.

It is an arithmetic number, because the mean of its divisors is an integer number (1402264336).

Almost surely, 2^5607456721 is an apocalyptic number.

It is an amenable number.

5607456721 is a deficient number, since it is larger than the sum of its proper divisors (1600623).

5607456721 is a wasteful number, since it uses less digits than its factorization.

5607456721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600622.

The product of its (nonzero) digits is 352800, while the sum is 43.

The square root of 5607456721 is about 74882.9534740718. The cubic root of 5607456721 is about 1776.5958506169.

The spelling of 5607456721 in words is "five billion, six hundred seven million, four hundred fifty-six thousand, seven hundred twenty-one".