5204406821 has 8 divisors (see below), whose sum is σ = 5373129984. Its totient is φ = 5035736160.

The previous prime is 5204406817. The next prime is 5204406833. The reversal of 5204406821 is 1286044025.

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 5204406821 - 2² = 5204406817 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 (5204406521) 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, 336950 + ... + 352056.

It is an arithmetic number, because the mean of its divisors is an integer number (671641248).

Almost surely, 2^5204406821 is an apocalyptic number.

It is an amenable number.

5204406821 is a deficient number, since it is larger than the sum of its proper divisors (168723163).

5204406821 is a wasteful number, since it uses less digits than its factorization.

5204406821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26251.

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 5204406821 is about 72141.5748441909. The cubic root of 5204406821 is about 1732.9674777109.

The spelling of 5204406821 in words is "five billion, two hundred four million, four hundred six thousand, eight hundred twenty-one".