53865850 has 24 divisors (see below), whose sum is σ = 100806048. Its totient is φ = 21414000.

The previous prime is 53865803. The next prime is 53865853. The reversal of 53865850 is 5856835.

It is not an unprimeable number, because it can be changed into a prime (53865853) 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 11 ways as a sum of consecutive naturals, for example, 5125 + ... + 11575.

It is an arithmetic number, because the mean of its divisors is an integer number (4200252).

Almost surely, 2^53865850 is an apocalyptic number.

53865850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

53865850 is a deficient number, since it is larger than the sum of its proper divisors (46940198).

53865850 is a wasteful number, since it uses less digits than its factorization.

53865850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6630 (or 6625 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 40.

The square root of 53865850 is about 7339.3358010109. The cubic root of 53865850 is about 377.6630583681.

It can be divided in two parts, 5386 and 5850, that added together give a square (11236 = 106²).

The spelling of 53865850 in words is "fifty-three million, eight hundred sixty-five thousand, eight hundred fifty".