275556754225 has 9 divisors (see below), whose sum is σ = 341693629867. Its totient is φ = 220443303640.

The previous prime is 275556754223. The next prime is 275556754237. The reversal of 275556754225 is 522457655572.

The square root of 275556754225 is 524935.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 99200431521 + 176356322704 = 314961^2 + 419948^2 .

It is not a de Polignac number, because 275556754225 - 2¹ = 275556754223 is a prime.

It is a super-3 number, since 3×275556754225³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (275556754223) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2572182 + ... + 2677168.

Almost surely, 2^275556754225 is an apocalyptic number.

275556754225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

275556754225 is the 524935-th square number.

275556754225 is the 262468-th centered octagonal number.

It is an amenable number.

275556754225 is a deficient number, since it is larger than the sum of its proper divisors (66136875642).

275556754225 is an frugal number, since it uses more digits than its factorization.

275556754225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209984 (or 104992 counting only the distinct ones).

The product of its digits is 29400000, while the sum is 55.

The spelling of 275556754225 in words is "two hundred seventy-five billion, five hundred fifty-six million, seven hundred fifty-four thousand, two hundred twenty-five".