275455520 has 48 divisors (see below), whose sum is σ = 652675968. Its totient is φ = 109858560.

The previous prime is 275455517. The next prime is 275455547. The reversal of 275455520 is 25554572.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56375 + ... + 61065.

It is an arithmetic number, because the mean of its divisors is an integer number (13597416).

Almost surely, 2^275455520 is an apocalyptic number.

275455520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 275455520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326337984).

275455520 is an abundant number, since it is smaller than the sum of its proper divisors (377220448).

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

275455520 is a wasteful number, since it uses less digits than its factorization.

275455520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5073 (or 5065 counting only the distinct ones).

The product of its (nonzero) digits is 70000, while the sum is 35.

The square root of 275455520 is about 16596.8527136924. The cubic root of 275455520 is about 650.6545831836.

The spelling of 275455520 in words is "two hundred seventy-five million, four hundred fifty-five thousand, five hundred twenty".