252440271 has 6 divisors (see below), whose sum is σ = 364635960. Its totient is φ = 168293508.

The previous prime is 252440261. The next prime is 252440311. The reversal of 252440271 is 172044252.

252440271 is a `hidden beast` number, since 252 + 4 + 402 + 7 + 1 = 666.

It is not a de Polignac number, because 252440271 - 2¹³ = 252432079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252440231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14024451 + ... + 14024468.

It is an arithmetic number, because the mean of its divisors is an integer number (60772660).

Almost surely, 2^252440271 is an apocalyptic number.

252440271 is a deficient number, since it is larger than the sum of its proper divisors (112195689).

252440271 is a wasteful number, since it uses less digits than its factorization.

252440271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28048925 (or 28048922 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 252440271 is about 15888.3690478287. The cubic root of 252440271 is about 632.0035909840.

The spelling of 252440271 in words is "two hundred fifty-two million, four hundred forty thousand, two hundred seventy-one".