53641220 has 12 divisors (see below), whose sum is σ = 112646604. Its totient is φ = 21456480.

The previous prime is 53641193. The next prime is 53641223. The reversal of 53641220 is 2214635.

It can be written as a sum of positive squares in 2 ways, for example, as 40347904 + 13293316 = 6352^2 + 3646^2 .

It is not an unprimeable number, because it can be changed into a prime (53641223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1341011 + ... + 1341050.

It is an arithmetic number, because the mean of its divisors is an integer number (9387217).

Almost surely, 2^53641220 is an apocalyptic number.

It is an amenable number.

53641220 is an abundant number, since it is smaller than the sum of its proper divisors (59005384).

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

53641220 is a wasteful number, since it uses less digits than its factorization.

53641220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2682070 (or 2682068 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 53641220 is about 7324.0166575452. The cubic root of 53641220 is about 377.1373532965.

Adding to 53641220 its reverse (2214635), we get a palindrome (55855855).

The spelling of 53641220 in words is "fifty-three million, six hundred forty-one thousand, two hundred twenty".