53731528 has 16 divisors (see below), whose sum is σ = 102890880. Its totient is φ = 26293968.

The previous prime is 53731499. The next prime is 53731529. The reversal of 53731528 is 82513735.

It is a junction number, because it is equal to n+sod(n) for n = 53731493 and 53731502.

It is not an unprimeable number, because it can be changed into a prime (53731529) 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, 71076 + ... + 71827.

It is an arithmetic number, because the mean of its divisors is an integer number (6430680).

Almost surely, 2^53731528 is an apocalyptic number.

It is an amenable number.

53731528 is a deficient number, since it is larger than the sum of its proper divisors (49159352).

53731528 is a wasteful number, since it uses less digits than its factorization.

53731528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142956 (or 142952 counting only the distinct ones).

The product of its digits is 25200, while the sum is 34.

The square root of 53731528 is about 7330.1792611095. The cubic root of 53731528 is about 377.3488785925.

The spelling of 53731528 in words is "fifty-three million, seven hundred thirty-one thousand, five hundred twenty-eight".