1053350550221 has 4 divisors (see below), whose sum is σ = 1053405144444. Its totient is φ = 1053295956000.

The previous prime is 1053350550181. The next prime is 1053350550247. The reversal of 1053350550221 is 1220550533501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 460381248196 + 592969302025 = 678514^2 + 770045^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1053350550221 is a prime.

It is a super-2 number, since 2×1053350550221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1053350150221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27268160 + ... + 27306761.

It is an arithmetic number, because the mean of its divisors is an integer number (263351286111).

Almost surely, 2^{1053350550221} is an apocalyptic number.

It is an amenable number.

1053350550221 is a deficient number, since it is larger than the sum of its proper divisors (54594223).

1053350550221 is an equidigital number, since it uses as much as digits as its factorization.

1053350550221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54594222.

The product of its (nonzero) digits is 22500, while the sum is 32.

The spelling of 1053350550221 in words is "one trillion, fifty-three billion, three hundred fifty million, five hundred fifty thousand, two hundred twenty-one".