275641425 has 18 divisors (see below), whose sum is σ = 493704822. Its totient is φ = 147008640.

The previous prime is 275641409. The next prime is 275641439. The reversal of 275641425 is 524146572.

It is a happy number.

275641425 is a `hidden beast` number, since 2 + 7 + 5 + 641 + 4 + 2 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 77845329 + 197796096 = 8823^2 + 14064^2 .

It is not a de Polignac number, because 275641425 - 2⁴ = 275641409 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 275641425.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 612312 + ... + 612761.

Almost surely, 2^275641425 is an apocalyptic number.

275641425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

275641425 is a deficient number, since it is larger than the sum of its proper divisors (218063397).

275641425 is a wasteful number, since it uses less digits than its factorization.

275641425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225089 (or 1225081 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 275641425 is about 16602.4523790915. The cubic root of 275641425 is about 650.8009259138.

Adding to 275641425 its reverse (524146572), we get a palindrome (799787997).

The spelling of 275641425 in words is "two hundred seventy-five million, six hundred forty-one thousand, four hundred twenty-five".