52281750 has 32 divisors (see below), whose sum is σ = 130497120. Its totient is φ = 13941600.

The previous prime is 52281731. The next prime is 52281763. The reversal of 52281750 is 5718225.

52281750 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34105 + ... + 35604.

It is an arithmetic number, because the mean of its divisors is an integer number (4078035).

Almost surely, 2^52281750 is an apocalyptic number.

52281750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

52281750 is an abundant number, since it is smaller than the sum of its proper divisors (78215370).

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

52281750 is a wasteful number, since it uses less digits than its factorization.

52281750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69729 (or 69719 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 52281750 is about 7230.6120072923. The cubic root of 52281750 is about 373.9240268150.

Adding to 52281750 its reverse (5718225), we get a palindrome (57999975).

The spelling of 52281750 in words is "fifty-two million, two hundred eighty-one thousand, seven hundred fifty".