52771040 has 144 divisors (see below), whose sum is σ = 148925952. Its totient is φ = 17611776.

The previous prime is 52771031. The next prime is 52771051. The reversal of 52771040 is 4017725.

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 23 ways as a sum of consecutive naturals, for example, 415457 + ... + 415583.

It is an arithmetic number, because the mean of its divisors is an integer number (1034208).

Almost surely, 2^52771040 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 52771040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74462976).

52771040 is an abundant number, since it is smaller than the sum of its proper divisors (96154912).

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

52771040 is a wasteful number, since it uses less digits than its factorization.

52771040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 52771040 is about 7264.3678320966. The cubic root of 52771040 is about 375.0868894953.

Adding to 52771040 its reverse (4017725), we get a palindrome (56788765).

The spelling of 52771040 in words is "fifty-two million, seven hundred seventy-one thousand, forty".