5452977721 has 4 divisors (see below), whose sum is σ = 5454746100. Its totient is φ = 5451209344.

The previous prime is 5452977703. The next prime is 5452977767. The reversal of 5452977721 is 1277792545.

5452977721 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1277792545 = 5 ⋅255558509.

It can be written as a sum of positive squares in 2 ways, for example, as 4420255225 + 1032722496 = 66485^2 + 32136^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5452977721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5452977781) 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, 879556 + ... + 885733.

It is an arithmetic number, because the mean of its divisors is an integer number (1363686525).

Almost surely, 2^5452977721 is an apocalyptic number.

It is an amenable number.

5452977721 is a deficient number, since it is larger than the sum of its proper divisors (1768379).

5452977721 is a wasteful number, since it uses less digits than its factorization.

5452977721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1768378.

The product of its digits is 1234800, while the sum is 49.

The square root of 5452977721 is about 73844.2802185789. The cubic root of 5452977721 is about 1760.1293079280.

The spelling of 5452977721 in words is "five billion, four hundred fifty-two million, nine hundred seventy-seven thousand, seven hundred twenty-one".