53344121 has 8 divisors (see below), whose sum is σ = 54877320. Its totient is φ = 51815808.

The previous prime is 53344103. The next prime is 53344133. The reversal of 53344121 is 12144335.

53344121 = 5164² + 5165².

It can be written as a sum of positive squares in 4 ways, for example, as 10310521 + 43033600 = 3211^2 + 6560^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53344121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53344141) 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, 41135 + ... + 42411.

It is an arithmetic number, because the mean of its divisors is an integer number (6859665).

Almost surely, 2^53344121 is an apocalyptic number.

53344121 is the 5165-th centered square number.

It is an amenable number.

53344121 is a deficient number, since it is larger than the sum of its proper divisors (1533199).

53344121 is a wasteful number, since it uses less digits than its factorization.

53344121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2443.

The product of its digits is 1440, while the sum is 23.

The square root of 53344121 is about 7303.7059771050. The cubic root of 53344121 is about 376.4397887990.

Adding to 53344121 its reverse (12144335), we get a palindrome (65488456).

The spelling of 53344121 in words is "fifty-three million, three hundred forty-four thousand, one hundred twenty-one".