53215441 has 4 divisors (see below), whose sum is σ = 53320500. Its totient is φ = 53110384.

The previous prime is 53215439. The next prime is 53215453. The reversal of 53215441 is 14451235.

It is a happy number.

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 32092225 + 21123216 = 5665^2 + 4596^2 .

It is a cyclic number.

It is not a de Polignac number, because 53215441 - 2¹ = 53215439 is a prime.

It is a super-3 number, since 3×53215441³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53215411) 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, 51766 + ... + 52783.

It is an arithmetic number, because the mean of its divisors is an integer number (13330125).

Almost surely, 2^53215441 is an apocalyptic number.

It is an amenable number.

53215441 is a deficient number, since it is larger than the sum of its proper divisors (105059).

53215441 is a wasteful number, since it uses less digits than its factorization.

53215441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105058.

The product of its digits is 2400, while the sum is 25.

The square root of 53215441 is about 7294.8914316801. The cubic root of 53215441 is about 376.1368546074.

Adding to 53215441 its reverse (14451235), we get a palindrome (67666676).

The spelling of 53215441 in words is "fifty-three million, two hundred fifteen thousand, four hundred forty-one".