53985500 has 24 divisors (see below), whose sum is σ = 117905424. Its totient is φ = 21594000.

The previous prime is 53985473. The next prime is 53985509. The reversal of 53985500 is 558935.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53985509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53486 + ... + 54485.

It is an arithmetic number, because the mean of its divisors is an integer number (4912726).

Almost surely, 2^53985500 is an apocalyptic number.

53985500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53985500 is an abundant number, since it is smaller than the sum of its proper divisors (63919924).

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

53985500 is a wasteful number, since it uses less digits than its factorization.

53985500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107990 (or 107978 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 53985500 is about 7347.4825620753. The cubic root of 53985500 is about 377.9424807265.

The spelling of 53985500 in words is "fifty-three million, nine hundred eighty-five thousand, five hundred".