275272405 has 16 divisors (see below), whose sum is σ = 345106944. Its totient is φ = 210536640.

The previous prime is 275272391. The next prime is 275272409. The reversal of 275272405 is 504272572.

It is a happy number.

It is not a de Polignac number, because 275272405 - 2¹¹ = 275270357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275272409) 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, 2167 + ... + 23563.

It is an arithmetic number, because the mean of its divisors is an integer number (21569184).

Almost surely, 2^275272405 is an apocalyptic number.

It is an amenable number.

275272405 is a deficient number, since it is larger than the sum of its proper divisors (69834539).

275272405 is a wasteful number, since it uses less digits than its factorization.

275272405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21516.

The product of its (nonzero) digits is 39200, while the sum is 34.

The square root of 275272405 is about 16591.3352386117. The cubic root of 275272405 is about 650.5103723323.

It can be divided in two parts, 2752 and 72405, that added together give a palindrome (75157).

The spelling of 275272405 in words is "two hundred seventy-five million, two hundred seventy-two thousand, four hundred five".