53321361 has 8 divisors (see below), whose sum is σ = 72829344. Its totient is φ = 34680480.

The previous prime is 53321357. The next prime is 53321363. The reversal of 53321361 is 16312335.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53321361 - 2² = 53321357 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53321363) 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, 216631 + ... + 216876.

It is an arithmetic number, because the mean of its divisors is an integer number (9103668).

Almost surely, 2^53321361 is an apocalyptic number.

It is an amenable number.

53321361 is a deficient number, since it is larger than the sum of its proper divisors (19507983).

53321361 is a wasteful number, since it uses less digits than its factorization.

53321361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433551.

The product of its digits is 1620, while the sum is 24.

The square root of 53321361 is about 7302.1476977667. The cubic root of 53321361 is about 376.3862434520.

Adding to 53321361 its reverse (16312335), we get a palindrome (69633696).

The spelling of 53321361 in words is "fifty-three million, three hundred twenty-one thousand, three hundred sixty-one".