52751520 has 96 divisors (see below), whose sum is σ = 184645440. Its totient is φ = 14065920.

The previous prime is 52751507. The next prime is 52751521. The reversal of 52751520 is 2515725.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (52751521) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1786 + ... + 10425.

It is an arithmetic number, because the mean of its divisors is an integer number (1923390).

Almost surely, 2^52751520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52751520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92322720).

52751520 is an abundant number, since it is smaller than the sum of its proper divisors (131893920).

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

52751520 is a wasteful number, since it uses less digits than its factorization.

52751520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12235 (or 12221 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 52751520 is about 7263.0241635286. The cubic root of 52751520 is about 375.0406355965.

The spelling of 52751520 in words is "fifty-two million, seven hundred fifty-one thousand, five hundred twenty".