275255020 has 24 divisors (see below), whose sum is σ = 578685744. Its totient is φ = 109978176.

The previous prime is 275254963. The next prime is 275255021. The reversal of 275255020 is 20552572.

It is a self number, because there is not a number n which added to its sum of digits gives 275255020.

It is not an unprimeable number, because it can be changed into a prime (275255021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11674 + ... + 26206.

It is an arithmetic number, because the mean of its divisors is an integer number (24111906).

Almost surely, 2^275255020 is an apocalyptic number.

275255020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275255020 is an abundant number, since it is smaller than the sum of its proper divisors (303430724).

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

275255020 is a wasteful number, since it uses less digits than its factorization.

275255020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15489 (or 15487 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 275255020 is about 16590.8113122897. The cubic root of 275255020 is about 650.4966775816.

The spelling of 275255020 in words is "two hundred seventy-five million, two hundred fifty-five thousand, twenty".