53658868 has 12 divisors (see below), whose sum is σ = 99426852. Its totient is φ = 25251200.

The previous prime is 53658863. The next prime is 53658877. The reversal of 53658868 is 86885635.

53658868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 38588944 + 15069924 = 6212^2 + 3882^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53658863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394483 + ... + 394618.

It is an arithmetic number, because the mean of its divisors is an integer number (8285571).

Almost surely, 2^53658868 is an apocalyptic number.

It is an amenable number.

53658868 is a deficient number, since it is larger than the sum of its proper divisors (45767984).

53658868 is a wasteful number, since it uses less digits than its factorization.

53658868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789122 (or 789120 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 49.

The square root of 53658868 is about 7325.2213618429. The cubic root of 53658868 is about 377.1787082485.

The spelling of 53658868 in words is "fifty-three million, six hundred fifty-eight thousand, eight hundred sixty-eight".