275225406 has 16 divisors (see below), whose sum is σ = 574383744. Its totient is φ = 87752984.

The previous prime is 275225329. The next prime is 275225407. The reversal of 275225406 is 604522572.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275225407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 997056 + ... + 997331.

It is an arithmetic number, because the mean of its divisors is an integer number (35898984).

Almost surely, 2^275225406 is an apocalyptic number.

275225406 is an abundant number, since it is smaller than the sum of its proper divisors (299158338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

275225406 is a wasteful number, since it uses less digits than its factorization.

275225406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1994415.

The product of its (nonzero) digits is 33600, while the sum is 33.

The square root of 275225406 is about 16589.9188063113. The cubic root of 275225406 is about 650.4733483074.

Adding to 275225406 its reverse (604522572), we get a palindrome (879747978).

The spelling of 275225406 in words is "two hundred seventy-five million, two hundred twenty-five thousand, four hundred six".