53728988 has 6 divisors (see below), whose sum is σ = 94025736. Its totient is φ = 26864492.

The previous prime is 53728981. The next prime is 53729003. The reversal of 53728988 is 88982735.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53728981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6716120 + ... + 6716127.

It is an arithmetic number, because the mean of its divisors is an integer number (15670956).

Almost surely, 2^53728988 is an apocalyptic number.

It is an amenable number.

53728988 is a deficient number, since it is larger than the sum of its proper divisors (40296748).

53728988 is a wasteful number, since it uses less digits than its factorization.

53728988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13432251 (or 13432249 counting only the distinct ones).

The product of its digits is 967680, while the sum is 50.

The square root of 53728988 is about 7330.0060027261. The cubic root of 53728988 is about 377.3429324793.

The spelling of 53728988 in words is "fifty-three million, seven hundred twenty-eight thousand, nine hundred eighty-eight".