53660020 has 24 divisors (see below), whose sum is σ = 113082984. Its totient is φ = 21388416.

The previous prime is 53660017. The next prime is 53660029. The reversal of 53660020 is 2006635.

53660020 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 4 ways, for example, as 7772944 + 45887076 = 2788^2 + 6774^2 .

It is a junction number, because it is equal to n+sod(n) for n = 53659973 and 53660000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53660029) 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 7 ways as a sum of consecutive naturals, for example, 1282 + ... + 10438.

It is an arithmetic number, because the mean of its divisors is an integer number (4711791).

Almost surely, 2^53660020 is an apocalyptic number.

It is an amenable number.

53660020 is an abundant number, since it is smaller than the sum of its proper divisors (59422964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53660020 is a wasteful number, since it uses less digits than its factorization.

53660020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9459 (or 9457 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 53660020 is about 7325.2999938569. The cubic root of 53660020 is about 377.1814074405.

Adding to 53660020 its reverse (2006635), we get a palindrome (55666655).

The spelling of 53660020 in words is "fifty-three million, six hundred sixty thousand, twenty".