53194348321 has 9 divisors (see below), whose sum is σ = 56511656499. Its totient is φ = 50061578784.

The previous prime is 53194348313. The next prime is 53194348343. The reversal of 53194348321 is 12384349135.

The square root of 53194348321 is 230639.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 41414285025 + 11780063296 = 203505^2 + 108536^2 .

It is not a de Polignac number, because 53194348321 - 2³ = 53194348313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53194348421) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3914080 + ... + 3927646.

Almost surely, 2^53194348321 is an apocalyptic number.

53194348321 is the 230639-th square number.

53194348321 is the 115320-th centered octagonal number.

It is an amenable number.

53194348321 is a deficient number, since it is larger than the sum of its proper divisors (3317308178).

53194348321 is an frugal number, since it uses more digits than its factorization.

53194348321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27168 (or 13584 counting only the distinct ones).

The product of its digits is 311040, while the sum is 43.

The spelling of 53194348321 in words is "fifty-three billion, one hundred ninety-four million, three hundred forty-eight thousand, three hundred twenty-one".