52781427 has 6 divisors (see below), whose sum is σ = 76239852. Its totient is φ = 35187612.

The previous prime is 52781419. The next prime is 52781543. The reversal of 52781427 is 72418725.

52781427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52781427 - 2³ = 52781419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52781391 and 52781400.

It is not an unprimeable number, because it can be changed into a prime (52781627) 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 5 ways as a sum of consecutive naturals, for example, 2932293 + ... + 2932310.

It is an arithmetic number, because the mean of its divisors is an integer number (12706642).

Almost surely, 2^52781427 is an apocalyptic number.

52781427 is a deficient number, since it is larger than the sum of its proper divisors (23458425).

52781427 is a wasteful number, since it uses less digits than its factorization.

52781427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5864609 (or 5864606 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 52781427 is about 7265.0827249247. The cubic root of 52781427 is about 375.1114975122. Note that the first 3 decimals are identical.

The spelling of 52781427 in words is "fifty-two million, seven hundred eighty-one thousand, four hundred twenty-seven".