52771438 has 4 divisors (see below), whose sum is σ = 79157160. Its totient is φ = 26385718.

The previous prime is 52771427. The next prime is 52771463. The reversal of 52771438 is 83417725.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 52771397 and 52771406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13192858 + ... + 13192861.

It is an arithmetic number, because the mean of its divisors is an integer number (19789290).

Almost surely, 2^52771438 is an apocalyptic number.

52771438 is a deficient number, since it is larger than the sum of its proper divisors (26385722).

52771438 is a wasteful number, since it uses less digits than its factorization.

52771438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26385721.

The product of its digits is 47040, while the sum is 37.

The square root of 52771438 is about 7264.3952260322. The cubic root of 52771438 is about 375.0878324633.

The spelling of 52771438 in words is "fifty-two million, seven hundred seventy-one thousand, four hundred thirty-eight".