53668549 has 16 divisors (see below), whose sum is σ = 60512256. Its totient is φ = 47174400.

The previous prime is 53668543. The next prime is 53668561. The reversal of 53668549 is 94586635.

It is a cyclic number.

It is not a de Polignac number, because 53668549 - 2⁷ = 53668421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53668499 and 53668508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53668543) 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, 56809 + ... + 57745.

It is an arithmetic number, because the mean of its divisors is an integer number (3782016).

Almost surely, 2^53668549 is an apocalyptic number.

It is an amenable number.

53668549 is a deficient number, since it is larger than the sum of its proper divisors (6843707).

53668549 is a wasteful number, since it uses less digits than its factorization.

53668549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116.

The product of its digits is 777600, while the sum is 46.

The square root of 53668549 is about 7325.8821311839. The cubic root of 53668549 is about 377.2013901005.

The spelling of 53668549 in words is "fifty-three million, six hundred sixty-eight thousand, five hundred forty-nine".