275889009 has 32 divisors (see below), whose sum is σ = 411225984. Its totient is φ = 163105280.

The previous prime is 275889001. The next prime is 275889011. The reversal of 275889009 is 900988572.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 275889009 - 2³ = 275889001 is a prime.

It is a super-2 number, since 2×275889009² = 152229490574004162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (275889001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 407179 + ... + 407855.

It is an arithmetic number, because the mean of its divisors is an integer number (12850812).

Almost surely, 2^275889009 is an apocalyptic number.

It is an amenable number.

275889009 is a deficient number, since it is larger than the sum of its proper divisors (135336975).

275889009 is a wasteful number, since it uses less digits than its factorization.

275889009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977.

The product of its (nonzero) digits is 362880, while the sum is 48.

The square root of 275889009 is about 16609.9069533818. The cubic root of 275889009 is about 650.9957196611.

The spelling of 275889009 in words is "two hundred seventy-five million, eight hundred eighty-nine thousand, nine".