5201393921 has 4 divisors (see below), whose sum is σ = 5289553200. Its totient is φ = 5113234644.

The previous prime is 5201393909. The next prime is 5201393971. The reversal of 5201393921 is 1293931025.

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 a cyclic number.

It is not a de Polignac number, because 5201393921 - 2¹⁰ = 5201392897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5201393971) 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, 44079551 + ... + 44079668.

It is an arithmetic number, because the mean of its divisors is an integer number (1322388300).

Almost surely, 2^5201393921 is an apocalyptic number.

It is an amenable number.

5201393921 is a deficient number, since it is larger than the sum of its proper divisors (88159279).

5201393921 is an equidigital number, since it uses as much as digits as its factorization.

5201393921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88159278.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 5201393921 is about 72120.6899648083. The cubic root of 5201393921 is about 1732.6330005541.

The spelling of 5201393921 in words is "five billion, two hundred one million, three hundred ninety-three thousand, nine hundred twenty-one".