53255985 has 32 divisors (see below), whose sum is σ = 93146112. Its totient is φ = 25866240.

The previous prime is 53255981. The next prime is 53255999. The reversal of 53255985 is 58955235.

It is not a de Polignac number, because 53255985 - 2² = 53255981 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53255981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4537 + ... + 11273.

It is an arithmetic number, because the mean of its divisors is an integer number (2910816).

Almost surely, 2^53255985 is an apocalyptic number.

It is an amenable number.

53255985 is a deficient number, since it is larger than the sum of its proper divisors (39890127).

53255985 is a wasteful number, since it uses less digits than its factorization.

53255985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6793.

The product of its digits is 270000, while the sum is 42.

The square root of 53255985 is about 7297.6698335839. The cubic root of 53255985 is about 376.2323545917.

The spelling of 53255985 in words is "fifty-three million, two hundred fifty-five thousand, nine hundred eighty-five".