536406354221 has 8 divisors (see below), whose sum is σ = 551146278264. Its totient is φ = 521679191040.

The previous prime is 536406354181. The next prime is 536406354233. The reversal of 536406354221 is 122453604635.

It can be written as a sum of positive squares in 4 ways, for example, as 181173666025 + 355232688196 = 425645^2 + 596014^2 .

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 536406354221 - 2²⁶ = 536339245357 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 (536406354241) 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, 3104960 + ... + 3273161.

It is an arithmetic number, because the mean of its divisors is an integer number (68893284783).

Almost surely, 2^536406354221 is an apocalyptic number.

It is an amenable number.

536406354221 is a deficient number, since it is larger than the sum of its proper divisors (14739924043).

536406354221 is a wasteful number, since it uses less digits than its factorization.

536406354221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6380431.

The product of its (nonzero) digits is 518400, while the sum is 41.

Adding to 536406354221 its reverse (122453604635), we get a palindrome (658859958856).

The spelling of 536406354221 in words is "five hundred thirty-six billion, four hundred six million, three hundred fifty-four thousand, two hundred twenty-one".