65728355 has 48 divisors (see below), whose sum is σ = 103667040. Its totient is φ = 39560640.

The previous prime is 65728343. The next prime is 65728357. The reversal of 65728355 is 55382756.

It is not a de Polignac number, because 65728355 - 2⁶ = 65728291 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65728357) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2266481 + ... + 2266509.

It is an arithmetic number, because the mean of its divisors is an integer number (2159730).

Almost surely, 2^65728355 is an apocalyptic number.

65728355 is a deficient number, since it is larger than the sum of its proper divisors (37938685).

65728355 is an equidigital number, since it uses as much as digits as its factorization.

65728355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117 (or 52 counting only the distinct ones).

The product of its digits is 252000, while the sum is 41.

The square root of 65728355 is about 8107.3025723726. The cubic root of 65728355 is about 403.5688039837.

The spelling of 65728355 in words is "sixty-five million, seven hundred twenty-eight thousand, three hundred fifty-five".