53323506221 has 8 divisors (see below), whose sum is σ = 53627074680. Its totient is φ = 53020219392.

The previous prime is 53323506169. The next prime is 53323506227. The reversal of 53323506221 is 12260532335.

It can be written as a sum of positive squares in 4 ways, for example, as 8965249225 + 44358256996 = 94685^2 + 210614^2 .

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 53323506221 - 2⁶ = 53323506157 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 (53323506227) 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, 315335 + ... + 453963.

It is an arithmetic number, because the mean of its divisors is an integer number (6703384335).

Almost surely, 2^53323506221 is an apocalyptic number.

It is an amenable number.

53323506221 is a deficient number, since it is larger than the sum of its proper divisors (303568459).

53323506221 is a wasteful number, since it uses less digits than its factorization.

53323506221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140815.

The product of its (nonzero) digits is 32400, while the sum is 32.

The spelling of 53323506221 in words is "fifty-three billion, three hundred twenty-three million, five hundred six thousand, two hundred twenty-one".