404552250343221 has 64 divisors (see below), whose sum is σ = 560543819523072. Its totient is φ = 259358533604352.

The previous prime is 404552250343139. The next prime is 404552250343223. The reversal of 404552250343221 is 122343052255404.

It is not a de Polignac number, because 404552250343221 - 2¹³ = 404552250335029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404552250343223) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8337305466 + ... + 8337353988.

It is an arithmetic number, because the mean of its divisors is an integer number (8758497180048).

Almost surely, 2^{404552250343221} is an apocalyptic number.

It is an amenable number.

404552250343221 is a deficient number, since it is larger than the sum of its proper divisors (155991569179851).

404552250343221 is a wasteful number, since it uses less digits than its factorization.

404552250343221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52482.

The product of its (nonzero) digits is 1152000, while the sum is 42.

The spelling of 404552250343221 in words is "four hundred four trillion, five hundred fifty-two billion, two hundred fifty million, three hundred forty-three thousand, two hundred twenty-one".