52771890 has 32 divisors (see below), whose sum is σ = 132160896. Its totient is φ = 13460480.

The previous prime is 52771883. The next prime is 52771891. The reversal of 52771890 is 9817725.

It is not an unprimeable number, because it can be changed into a prime (52771891) 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, 37551 + ... + 38930.

It is an arithmetic number, because the mean of its divisors is an integer number (4130028).

Almost surely, 2^52771890 is an apocalyptic number.

52771890 is an abundant number, since it is smaller than the sum of its proper divisors (79389006).

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

52771890 is a wasteful number, since it uses less digits than its factorization.

52771890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76514.

The product of its (nonzero) digits is 35280, while the sum is 39.

The square root of 52771890 is about 7264.4263366077. The cubic root of 52771890 is about 375.0889033660.

The spelling of 52771890 in words is "fifty-two million, seven hundred seventy-one thousand, eight hundred ninety".