275255221248 has 528 divisors, whose sum is σ = 967662818304. Its totient is φ = 76500910080.

The previous prime is 275255221223. The next prime is 275255221277. The reversal of 275255221248 is 842122552572.

275255221248 is a `hidden beast` number, since 2 + 7 + 52 + 552 + 2 + 1 + 2 + 48 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64445353 + ... + 64449623.

Almost surely, 2^275255221248 is an apocalyptic number.

275255221248 is a gapful number since it is divisible by the number (28) 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 275255221248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (483831409152).

275255221248 is an abundant number, since it is smaller than the sum of its proper divisors (692407597056).

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

275255221248 is an equidigital number, since it uses as much as digits as its factorization.

275255221248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4350 (or 4320 counting only the distinct ones).

The product of its digits is 896000, while the sum is 45.

The spelling of 275255221248 in words is "two hundred seventy-five billion, two hundred fifty-five million, two hundred twenty-one thousand, two hundred forty-eight".