53543864 has 32 divisors (see below), whose sum is σ = 110041200. Its totient is φ = 24222720.

The previous prime is 53543813. The next prime is 53543879. The reversal of 53543864 is 46834535.

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 7 ways as a sum of consecutive naturals, for example, 18824 + ... + 21480.

Almost surely, 2^53543864 is an apocalyptic number.

It is an amenable number.

53543864 is an abundant number, since it is smaller than the sum of its proper divisors (56497336).

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

53543864 is a wasteful number, since it uses less digits than its factorization.

53543864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2903 (or 2899 counting only the distinct ones).

The product of its digits is 172800, while the sum is 38.

The square root of 53543864 is about 7317.3672861214. The cubic root of 53543864 is about 376.9090536202.

The spelling of 53543864 in words is "fifty-three million, five hundred forty-three thousand, eight hundred sixty-four".