53020540 has 24 divisors (see below), whose sum is σ = 114936192. Its totient is φ = 20523840.

The previous prime is 53020531. The next prime is 53020549. The reversal of 53020540 is 4502035.

It is a happy number.

53020540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (53020531) and next prime (53020549).

It is a super-2 number, since 2×53020540² = 5622355323783200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53020549) 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, 42139 + ... + 43378.

It is an arithmetic number, because the mean of its divisors is an integer number (4789008).

Almost surely, 2^53020540 is an apocalyptic number.

It is an amenable number.

53020540 is an abundant number, since it is smaller than the sum of its proper divisors (61915652).

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

53020540 is a wasteful number, since it uses less digits than its factorization.

53020540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85557 (or 85555 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 53020540 is about 7281.5204456212. The cubic root of 53020540 is about 375.6770937520.

Adding to 53020540 its reverse (4502035), we get a palindrome (57522575).

The spelling of 53020540 in words is "fifty-three million, twenty thousand, five hundred forty".