53132540 has 12 divisors (see below), whose sum is σ = 111578376. Its totient is φ = 21253008.

The previous prime is 53132537. The next prime is 53132549. The reversal of 53132540 is 4523135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53132549) 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, 1328294 + ... + 1328333.

It is an arithmetic number, because the mean of its divisors is an integer number (9298198).

Almost surely, 2^53132540 is an apocalyptic number.

It is an amenable number.

53132540 is an abundant number, since it is smaller than the sum of its proper divisors (58445836).

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

53132540 is a wasteful number, since it uses less digits than its factorization.

53132540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2656636 (or 2656634 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 53132540 is about 7289.2070899378. The cubic root of 53132540 is about 375.9414330840.

Adding to 53132540 its reverse (4523135), we get a palindrome (57655675).

The spelling of 53132540 in words is "fifty-three million, one hundred thirty-two thousand, five hundred forty".