53981659 has 4 divisors (see below), whose sum is σ = 53996400. Its totient is φ = 53966920.

The previous prime is 53981651. The next prime is 53981687. The reversal of 53981659 is 95618935.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 53981659 - 2³ = 53981651 is a prime.

It is a Duffinian number.

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

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2817 + ... + 10765.

It is an arithmetic number, because the mean of its divisors is an integer number (13499100).

Almost surely, 2^53981659 is an apocalyptic number.

53981659 is a deficient number, since it is larger than the sum of its proper divisors (14741).

53981659 is an equidigital number, since it uses as much as digits as its factorization.

53981659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14740.

The product of its digits is 291600, while the sum is 46.

The square root of 53981659 is about 7347.2211753832. The cubic root of 53981659 is about 377.9335171376.

The spelling of 53981659 in words is "fifty-three million, nine hundred eighty-one thousand, six hundred fifty-nine".