53287845 has 16 divisors (see below), whose sum is σ = 91819392. Its totient is φ = 26233920.

The previous prime is 53287813. The next prime is 53287859. The reversal of 53287845 is 54878235.

It is not a de Polignac number, because 53287845 - 2⁵ = 53287813 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 53287797 and 53287806.

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, 136441 + ... + 136830.

It is an arithmetic number, because the mean of its divisors is an integer number (5738712).

Almost surely, 2^53287845 is an apocalyptic number.

It is an amenable number.

53287845 is a deficient number, since it is larger than the sum of its proper divisors (38531547).

53287845 is a wasteful number, since it uses less digits than its factorization.

53287845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273292.

The product of its digits is 268800, while the sum is 42.

The square root of 53287845 is about 7299.8523957680. The cubic root of 53287845 is about 376.3073657119.

The spelling of 53287845 in words is "fifty-three million, two hundred eighty-seven thousand, eight hundred forty-five".