53361240 has 32 divisors (see below), whose sum is σ = 160084080. Its totient is φ = 14229632.

The previous prime is 53361227. The next prime is 53361241. The reversal of 53361240 is 4216335.

It is a happy number.

53361240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 53361240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53361241) 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, 222219 + ... + 222458.

Almost surely, 2^53361240 is an apocalyptic number.

It is an amenable number.

53361240 is an abundant number, since it is smaller than the sum of its proper divisors (106722840).

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

53361240 is a wasteful number, since it uses less digits than its factorization.

53361240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444691 (or 444687 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 53361240 is about 7304.8778223869. The cubic root of 53361240 is about 376.4800530517.

Adding to 53361240 its reverse (4216335), we get a palindrome (57577575).

The spelling of 53361240 in words is "fifty-three million, three hundred sixty-one thousand, two hundred forty".