275655660 has 48 divisors (see below), whose sum is σ = 882099456. Its totient is φ = 63006912.

The previous prime is 275655649. The next prime is 275655683. The reversal of 275655660 is 66556572.

It is a happy number.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 327742 + ... + 328581.

It is an arithmetic number, because the mean of its divisors is an integer number (18377072).

Almost surely, 2^275655660 is an apocalyptic number.

275655660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275655660 is an abundant number, since it is smaller than the sum of its proper divisors (606443796).

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

275655660 is a wasteful number, since it uses less digits than its factorization.

275655660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656342 (or 656340 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 42.

The square root of 275655660 is about 16602.8810752833. The cubic root of 275655660 is about 650.8121288643.

The spelling of 275655660 in words is "two hundred seventy-five million, six hundred fifty-five thousand, six hundred sixty".