53144732 has 24 divisors (see below), whose sum is σ = 95622912. Its totient is φ = 25830000.

The previous prime is 53144731. The next prime is 53144747. The reversal of 53144732 is 23744135.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 53144695 and 53144704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53144731) 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, 42557 + ... + 43787.

It is an arithmetic number, because the mean of its divisors is an integer number (3984288).

Almost surely, 2^53144732 is an apocalyptic number.

It is an amenable number.

53144732 is a deficient number, since it is larger than the sum of its proper divisors (42478180).

53144732 is a wasteful number, since it uses less digits than its factorization.

53144732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1529 (or 1527 counting only the distinct ones).

The product of its digits is 10080, while the sum is 29.

The square root of 53144732 is about 7290.0433469219. The cubic root of 53144732 is about 375.9701858811.

Adding to 53144732 its reverse (23744135), we get a palindrome (76888867).

The spelling of 53144732 in words is "fifty-three million, one hundred forty-four thousand, seven hundred thirty-two".