52771686 has 32 divisors (see below), whose sum is σ = 116339328. Its totient is φ = 15824640.

The previous prime is 52771681. The next prime is 52771687. The reversal of 52771686 is 68617725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52771681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2281 + ... + 10523.

It is an arithmetic number, because the mean of its divisors is an integer number (3635604).

Almost surely, 2^52771686 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52771686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58169664).

52771686 is an abundant number, since it is smaller than the sum of its proper divisors (63567642).

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

52771686 is a wasteful number, since it uses less digits than its factorization.

52771686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8356.

The product of its digits is 141120, while the sum is 42.

The square root of 52771686 is about 7264.4122955680. The cubic root of 52771686 is about 375.0884200390.

The spelling of 52771686 in words is "fifty-two million, seven hundred seventy-one thousand, six hundred eighty-six".