5220421405 has 8 divisors (see below), whose sum is σ = 6274728792. Its totient is φ = 4169521728.

The previous prime is 5220421373. The next prime is 5220421411. The reversal of 5220421405 is 5041240225.

It can be written as a sum of positive squares in 4 ways, for example, as 3392964 + 5217028441 = 1842^2 + 72229^2 .

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 5220421405 - 2⁵ = 5220421373 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5220421405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 848554 + ... + 854683.

It is an arithmetic number, because the mean of its divisors is an integer number (784341099).

Almost surely, 2^5220421405 is an apocalyptic number.

It is an amenable number.

5220421405 is a deficient number, since it is larger than the sum of its proper divisors (1054307387).

5220421405 is a wasteful number, since it uses less digits than its factorization.

5220421405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703855.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 5220421405 is about 72252.4837289349. The cubic root of 5220421405 is about 1734.7431738709.

The spelling of 5220421405 in words is "five billion, two hundred twenty million, four hundred twenty-one thousand, four hundred five".