53053540 has 12 divisors (see below), whose sum is σ = 111412476. Its totient is φ = 21221408.

The previous prime is 53053537. The next prime is 53053547. The reversal of 53053540 is 4535035.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 34597924 + 18455616 = 5882^2 + 4296^2 .

It is not an unprimeable number, because it can be changed into a prime (53053547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1326319 + ... + 1326358.

It is an arithmetic number, because the mean of its divisors is an integer number (9284373).

Almost surely, 2^53053540 is an apocalyptic number.

It is an amenable number.

53053540 is an abundant number, since it is smaller than the sum of its proper divisors (58358936).

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

53053540 is a wasteful number, since it uses less digits than its factorization.

53053540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2652686 (or 2652684 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 25.

The square root of 53053540 is about 7283.7861033943. The cubic root of 53053540 is about 375.7550180995.

Adding to 53053540 its reverse (4535035), we get a palindrome (57588575).

The spelling of 53053540 in words is "fifty-three million, fifty-three thousand, five hundred forty".