53728895 has 16 divisors (see below), whose sum is σ = 71331840. Its totient is φ = 38522400.

The previous prime is 53728889. The next prime is 53728907. The reversal of 53728895 is 59882735.

It is not a de Polignac number, because 53728895 - 2⁴ = 53728879 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2975 + ... + 10784.

It is an arithmetic number, because the mean of its divisors is an integer number (4458240).

Almost surely, 2^53728895 is an apocalyptic number.

53728895 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

53728895 is a deficient number, since it is larger than the sum of its proper divisors (17602945).

53728895 is a wasteful number, since it uses less digits than its factorization.

53728895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13846.

The product of its digits is 604800, while the sum is 47.

The square root of 53728895 is about 7329.9996589359. Note that the first 3 decimals coincide. The cubic root of 53728895 is about 377.3427147637.

The spelling of 53728895 in words is "fifty-three million, seven hundred twenty-eight thousand, eight hundred ninety-five".