52751540 has 24 divisors (see below), whose sum is σ = 113356320. Its totient is φ = 20609568.

The previous prime is 52751537. The next prime is 52751549. The reversal of 52751540 is 4515725.

52751540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52751549) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 29810 + ... + 31529.

It is an arithmetic number, because the mean of its divisors is an integer number (4723180).

Almost surely, 2^52751540 is an apocalyptic number.

It is an amenable number.

52751540 is an abundant number, since it is smaller than the sum of its proper divisors (60604780).

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

52751540 is a wasteful number, since it uses less digits than its factorization.

52751540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61391 (or 61389 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 52751540 is about 7263.0255403654. The cubic root of 52751540 is about 375.0406829936.

The spelling of 52751540 in words is "fifty-two million, seven hundred fifty-one thousand, five hundred forty".