53072641 has 4 divisors (see below), whose sum is σ = 53171284. Its totient is φ = 52974000.

The previous prime is 53072633. The next prime is 53072647. The reversal of 53072641 is 14627035.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14627035 = 5 ⋅2925407.

It can be written as a sum of positive squares in 2 ways, for example, as 11082241 + 41990400 = 3329^2 + 6480^2 .

It is a cyclic number.

It is not a de Polignac number, because 53072641 - 2³ = 53072633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53072647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48510 + ... + 49591.

It is an arithmetic number, because the mean of its divisors is an integer number (13292821).

Almost surely, 2^53072641 is an apocalyptic number.

53072641 is the 4608-th centered pentagonal number.

It is an amenable number.

53072641 is a deficient number, since it is larger than the sum of its proper divisors (98643).

53072641 is an equidigital number, since it uses as much as digits as its factorization.

53072641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98642.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 53072641 is about 7285.0971853504. The cubic root of 53072641 is about 375.8001073648.

Adding to 53072641 its reverse (14627035), we get a palindrome (67699676).

The spelling of 53072641 in words is "fifty-three million, seventy-two thousand, six hundred forty-one".