53495728 has 80 divisors (see below), whose sum is σ = 123492096. Its totient is φ = 22129920.

The previous prime is 53495711. The next prime is 53495737. The reversal of 53495728 is 82759435.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235551 + ... + 235777.

Almost surely, 2^53495728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53495728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61746048).

53495728 is an abundant number, since it is smaller than the sum of its proper divisors (69996368).

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

53495728 is a wasteful number, since it uses less digits than its factorization.

53495728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362 (or 356 counting only the distinct ones).

The product of its digits is 302400, while the sum is 43.

The square root of 53495728 is about 7314.0773854260. The cubic root of 53495728 is about 376.7960725215.

The spelling of 53495728 in words is "fifty-three million, four hundred ninety-five thousand, seven hundred twenty-eight".