53820285 has 8 divisors (see below), whose sum is σ = 86112480. Its totient is φ = 28704144.

The previous prime is 53820257. The next prime is 53820287. The reversal of 53820285 is 58202835.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53820285 - 2¹⁰ = 53819261 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53820287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1793995 + ... + 1794024.

It is an arithmetic number, because the mean of its divisors is an integer number (10764060).

Almost surely, 2^53820285 is an apocalyptic number.

It is an amenable number.

53820285 is a deficient number, since it is larger than the sum of its proper divisors (32292195).

53820285 is a wasteful number, since it uses less digits than its factorization.

53820285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3588027.

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 53820285 is about 7336.2309805513. The cubic root of 53820285 is about 377.5565402206.

The spelling of 53820285 in words is "fifty-three million, eight hundred twenty thousand, two hundred eighty-five".