5258439421 has 8 divisors (see below), whose sum is σ = 5319545400. Its totient is φ = 5197378560.

The previous prime is 5258439409. The next prime is 5258439443. The reversal of 5258439421 is 1249348525.

It can be written as a sum of positive squares in 4 ways, for example, as 187005625 + 5071433796 = 13675^2 + 71214^2 .

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 5258439421 - 2¹⁵ = 5258406653 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 (5258439401) 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, 260935 + ... + 280363.

It is an arithmetic number, because the mean of its divisors is an integer number (664943175).

Almost surely, 2^5258439421 is an apocalyptic number.

It is an amenable number.

5258439421 is a deficient number, since it is larger than the sum of its proper divisors (61105979).

5258439421 is a wasteful number, since it uses less digits than its factorization.

5258439421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22559.

The product of its digits is 345600, while the sum is 43.

The square root of 5258439421 is about 72515.0978831305. The cubic root of 5258439421 is about 1738.9441144172.

The spelling of 5258439421 in words is "five billion, two hundred fifty-eight million, four hundred thirty-nine thousand, four hundred twenty-one".