53132644 has 12 divisors (see below), whose sum is σ = 94027500. Its totient is φ = 26267648.

The previous prime is 53132617. The next prime is 53132663. The reversal of 53132644 is 44623135.

It can be written as a sum of positive squares in 2 ways, for example, as 34105600 + 19027044 = 5840^2 + 4362^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74269 + ... + 74980.

It is an arithmetic number, because the mean of its divisors is an integer number (7835625).

Almost surely, 2^53132644 is an apocalyptic number.

It is an amenable number.

53132644 is a deficient number, since it is larger than the sum of its proper divisors (40894856).

53132644 is a wasteful number, since it uses less digits than its factorization.

53132644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149342 (or 149340 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

The square root of 53132644 is about 7289.2142237693. The cubic root of 53132644 is about 375.9416783693.

Adding to 53132644 its reverse (44623135), we get a palindrome (97755779).

The spelling of 53132644 in words is "fifty-three million, one hundred thirty-two thousand, six hundred forty-four".