5456210921 has 8 divisors (see below), whose sum is σ = 6250919040. Its totient is φ = 4665315168.

The previous prime is 5456210899. The next prime is 5456210953. The reversal of 5456210921 is 1290126545.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5456210921 - 2¹⁰ = 5456209897 is a prime.

It is a super-2 number, since 2×5456210921² = 59540475228879336482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5456210021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 950021 + ... + 955746.

It is an arithmetic number, because the mean of its divisors is an integer number (781364880).

Almost surely, 2^5456210921 is an apocalyptic number.

It is an amenable number.

5456210921 is a deficient number, since it is larger than the sum of its proper divisors (794708119).

5456210921 is a wasteful number, since it uses less digits than its factorization.

5456210921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1906183.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 5456210921 is about 73866.1689882452. The cubic root of 5456210921 is about 1760.4771133531.

The spelling of 5456210921 in words is "five billion, four hundred fifty-six million, two hundred ten thousand, nine hundred twenty-one".