70505271 has 12 divisors (see below), whose sum is σ = 101916360. Its totient is φ = 46968720.

The previous prime is 70505249. The next prime is 70505389. The reversal of 70505271 is 17250507.

It is not a de Polignac number, because 70505271 - 2²² = 66310967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70505231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17440 + ... + 21098.

It is an arithmetic number, because the mean of its divisors is an integer number (8493030).

Almost surely, 2^70505271 is an apocalyptic number.

70505271 is a deficient number, since it is larger than the sum of its proper divisors (31411089).

70505271 is a wasteful number, since it uses less digits than its factorization.

70505271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5806 (or 5803 counting only the distinct ones).

The product of its (nonzero) digits is 2450, while the sum is 27.

The square root of 70505271 is about 8396.7416894888. The cubic root of 70505271 is about 413.1177564850.

Adding to 70505271 its reverse (17250507), we get a palindrome (87755778).

It can be divided in two parts, 7050 and 5271, that added together give a palindrome (12321).

The spelling of 70505271 in words is "seventy million, five hundred five thousand, two hundred seventy-one".