53993980 has 24 divisors (see below), whose sum is σ = 113526000. Its totient is φ = 21571200.

The previous prime is 53993977. The next prime is 53994011. The reversal of 53993980 is 8939935.

It is a self number, because there is not a number n which added to its sum of digits gives 53993980.

It is a congruent number.

It is an unprimeable number.

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, 29080 + ... + 30880.

It is an arithmetic number, because the mean of its divisors is an integer number (4730250).

Almost surely, 2^53993980 is an apocalyptic number.

It is an amenable number.

53993980 is an abundant number, since it is smaller than the sum of its proper divisors (59532020).

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

53993980 is a wasteful number, since it uses less digits than its factorization.

53993980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3309 (or 3307 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 46.

The square root of 53993980 is about 7348.0596078148. The cubic root of 53993980 is about 377.9622686600.

The spelling of 53993980 in words is "fifty-three million, nine hundred ninety-three thousand, nine hundred eighty".