275399956 has 24 divisors (see below), whose sum is σ = 520964864. Its totient is φ = 126632160.

The previous prime is 275399947. The next prime is 275399963. The reversal of 275399956 is 659993572.

It is a happy number.

275399956 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 275399897 and 275399906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4321 + ... + 23863.

Almost surely, 2^275399956 is an apocalyptic number.

275399956 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

275399956 is a deficient number, since it is larger than the sum of its proper divisors (245564908).

275399956 is a wasteful number, since it uses less digits than its factorization.

275399956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19831 (or 19829 counting only the distinct ones).

The product of its digits is 4592700, while the sum is 55.

The square root of 275399956 is about 16595.1786974410. The cubic root of 275399956 is about 650.6108309262.

The spelling of 275399956 in words is "two hundred seventy-five million, three hundred ninety-nine thousand, nine hundred fifty-six".