5452947921 has 16 divisors (see below), whose sum is σ = 7656857600. Its totient is φ = 3442348368.

The previous prime is 5452947917. The next prime is 5452947937. The reversal of 5452947921 is 1297492545.

It is a happy number.

It is not a de Polignac number, because 5452947921 - 2² = 5452947917 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5452947901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106260 + ... + 148986.

It is an arithmetic number, because the mean of its divisors is an integer number (478553600).

Almost surely, 2^5452947921 is an apocalyptic number.

It is an amenable number.

5452947921 is a deficient number, since it is larger than the sum of its proper divisors (2203909679).

5452947921 is a wasteful number, since it uses less digits than its factorization.

5452947921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44988.

The product of its digits is 907200, while the sum is 48.

The square root of 5452947921 is about 73844.0784423504. The cubic root of 5452947921 is about 1760.1261016096.

The spelling of 5452947921 in words is "five billion, four hundred fifty-two million, nine hundred forty-seven thousand, nine hundred twenty-one".