53981641 has 16 divisors (see below), whose sum is σ = 66457600. Its totient is φ = 42810768.

The previous prime is 53981617. The next prime is 53981651. The reversal of 53981641 is 14618935.

It is not a de Polignac number, because 53981641 - 2¹¹ = 53979593 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53981641.

It is not an unprimeable number, because it can be changed into a prime (53981651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1000 + ... + 10438.

It is an arithmetic number, because the mean of its divisors is an integer number (4153600).

Almost surely, 2^53981641 is an apocalyptic number.

It is an amenable number.

53981641 is a deficient number, since it is larger than the sum of its proper divisors (12475959).

53981641 is a wasteful number, since it uses less digits than its factorization.

53981641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9508.

The product of its digits is 25920, while the sum is 37.

The square root of 53981641 is about 7347.2199504302. The cubic root of 53981641 is about 377.9334751307.

The spelling of 53981641 in words is "fifty-three million, nine hundred eighty-one thousand, six hundred forty-one".