53321532 has 24 divisors (see below), whose sum is σ = 135727872. Its totient is φ = 16158000.

The previous prime is 53321531. The next prime is 53321533. The reversal of 53321532 is 23512335.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (53321531) and next prime (53321533).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53321531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201844 + ... + 202107.

It is an arithmetic number, because the mean of its divisors is an integer number (5655328).

Almost surely, 2^53321532 is an apocalyptic number.

It is an amenable number.

53321532 is an abundant number, since it is smaller than the sum of its proper divisors (82406340).

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

53321532 is a wasteful number, since it uses less digits than its factorization.

53321532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403969 (or 403967 counting only the distinct ones).

The product of its digits is 2700, while the sum is 24.

The square root of 53321532 is about 7302.1594066413. The cubic root of 53321532 is about 376.3866458047.

Adding to 53321532 its reverse (23512335), we get a palindrome (76833867).

The spelling of 53321532 in words is "fifty-three million, three hundred twenty-one thousand, five hundred thirty-two".