53775000 has 144 divisors (see below), whose sum is σ = 182800800. Its totient is φ = 14280000.

The previous prime is 53774999. The next prime is 53775013. The reversal of 53775000 is 57735.

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 35 ways as a sum of consecutive naturals, for example, 224881 + ... + 225119.

It is an arithmetic number, because the mean of its divisors is an integer number (1269450).

Almost surely, 2^53775000 is an apocalyptic number.

53775000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53775000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91400400).

53775000 is an abundant number, since it is smaller than the sum of its proper divisors (129025800).

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

53775000 is a wasteful number, since it uses less digits than its factorization.

53775000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276 (or 249 counting only the distinct ones).

The product of its (nonzero) digits is 3675, while the sum is 27.

The square root of 53775000 is about 7333.1439369482. The cubic root of 53775000 is about 377.4506170509.

The spelling of 53775000 in words is "fifty-three million, seven hundred seventy-five thousand".