5319448021 has 4 divisors (see below), whose sum is σ = 5343302272. Its totient is φ = 5295593772.

The previous prime is 5319448009. The next prime is 5319448037. The reversal of 5319448021 is 1208449135.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1208449135 = 5 ⋅241689827.

It is a cyclic number.

It is not a de Polignac number, because 5319448021 - 2¹⁵ = 5319415253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5319442021) 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, 11926791 + ... + 11927236.

It is an arithmetic number, because the mean of its divisors is an integer number (1335825568).

Almost surely, 2^5319448021 is an apocalyptic number.

It is an amenable number.

5319448021 is a deficient number, since it is larger than the sum of its proper divisors (23854251).

5319448021 is a wasteful number, since it uses less digits than its factorization.

5319448021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23854250.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 5319448021 is about 72934.5461424146. The cubic root of 5319448021 is about 1745.6433695224.

The spelling of 5319448021 in words is "five billion, three hundred nineteen million, four hundred forty-eight thousand, twenty-one".