53855616 has 32 divisors (see below), whose sum is σ = 143055000. Its totient is φ = 17951744.

The previous prime is 53855597. The next prime is 53855623. The reversal of 53855616 is 61655835.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69741 + ... + 70508.

Almost surely, 2^53855616 is an apocalyptic number.

It is an amenable number.

53855616 is an abundant number, since it is smaller than the sum of its proper divisors (89199384).

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

53855616 is a wasteful number, since it uses less digits than its factorization.

53855616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140266 (or 140254 counting only the distinct ones).

The product of its digits is 108000, while the sum is 39.

The square root of 53855616 is about 7338.6385658377. The cubic root of 53855616 is about 377.6391393883.

The spelling of 53855616 in words is "fifty-three million, eight hundred fifty-five thousand, six hundred sixteen".