5193936021 has 4 divisors (see below), whose sum is σ = 6925248032. Its totient is φ = 3462624012.

The previous prime is 5193936017. The next prime is 5193936031. The reversal of 5193936021 is 1206393915.

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 not a de Polignac number, because 5193936021 - 2² = 5193936017 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 (5193936031) 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, 865656001 + ... + 865656006.

It is an arithmetic number, because the mean of its divisors is an integer number (1731312008).

Almost surely, 2^5193936021 is an apocalyptic number.

It is an amenable number.

5193936021 is a deficient number, since it is larger than the sum of its proper divisors (1731312011).

5193936021 is a wasteful number, since it uses less digits than its factorization.

5193936021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1731312010.

The product of its (nonzero) digits is 43740, while the sum is 39.

The square root of 5193936021 is about 72068.9671148408. The cubic root of 5193936021 is about 1731.8045056895.

The spelling of 5193936021 in words is "five billion, one hundred ninety-three million, nine hundred thirty-six thousand, twenty-one".