275065830 has 48 divisors (see below), whose sum is σ = 770187600. Its totient is φ = 67708224.

The previous prime is 275065811. The next prime is 275065837. The reversal of 275065830 is 38560572.

275065830 is a `hidden beast` number, since 2 + 75 + 0 + 6 + 583 + 0 = 666.

It is a super-2 number, since 2×275065830² = 151322421667177800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275065837) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116380 + ... + 118719.

It is an arithmetic number, because the mean of its divisors is an integer number (16045575).

Almost surely, 2^275065830 is an apocalyptic number.

275065830 is an abundant number, since it is smaller than the sum of its proper divisors (495121770).

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

275065830 is a wasteful number, since it uses less digits than its factorization.

275065830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235125 (or 235122 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 275065830 is about 16585.1086821884. The cubic root of 275065830 is about 650.3476089433.

The spelling of 275065830 in words is "two hundred seventy-five million, sixty-five thousand, eight hundred thirty".