53985750 has 192 divisors, whose sum is σ = 170299584. Its totient is φ = 11289600.

The previous prime is 53985739. The next prime is 53985779. The reversal of 53985750 is 5758935.

It is a super-2 number, since 2×53985750² = 5828922406125000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 477694 + ... + 477806.

It is an arithmetic number, because the mean of its divisors is an integer number (886977).

Almost surely, 2^53985750 is an apocalyptic number.

53985750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 53985750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85149792).

53985750 is an abundant number, since it is smaller than the sum of its proper divisors (116313834).

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

53985750 is a wasteful number, since it uses less digits than its factorization.

53985750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 189000, while the sum is 42.

The square root of 53985750 is about 7347.4995746853. The cubic root of 53985750 is about 377.9430641269.

The spelling of 53985750 in words is "fifty-three million, nine hundred eighty-five thousand, seven hundred fifty".