275552220 has 48 divisors (see below), whose sum is σ = 774079488. Its totient is φ = 73239360.

The previous prime is 275552219. The next prime is 275552227. The reversal of 275552220 is 22255572.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275552227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11277 + ... + 26043.

It is an arithmetic number, because the mean of its divisors is an integer number (16126656).

Almost surely, 2^275552220 is an apocalyptic number.

275552220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275552220 is an abundant number, since it is smaller than the sum of its proper divisors (498527268).

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

275552220 is a wasteful number, since it uses less digits than its factorization.

275552220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15090 (or 15088 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 30.

The square root of 275552220 is about 16599.7656609965. The cubic root of 275552220 is about 650.7307127610.

The spelling of 275552220 in words is "two hundred seventy-five million, five hundred fifty-two thousand, two hundred twenty".