53861856 has 24 divisors (see below), whose sum is σ = 141387624. Its totient is φ = 17953920.

The previous prime is 53861783. The next prime is 53861881. The reversal of 53861856 is 65816835.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280435 + ... + 280626.

It is an arithmetic number, because the mean of its divisors is an integer number (5891151).

Almost surely, 2^53861856 is an apocalyptic number.

It is an amenable number.

53861856 is an abundant number, since it is smaller than the sum of its proper divisors (87525768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53861856 is a wasteful number, since it uses less digits than its factorization.

53861856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561074 (or 561066 counting only the distinct ones).

The product of its digits is 172800, while the sum is 42.

The square root of 53861856 is about 7339.0637005002. The cubic root of 53861856 is about 377.6537239225.

The spelling of 53861856 in words is "fifty-three million, eight hundred sixty-one thousand, eight hundred fifty-six".