275220625440 has 48 divisors (see below), whose sum is σ = 866944971648. Its totient is φ = 73392166656.

The previous prime is 275220625373. The next prime is 275220625457. The reversal of 275220625440 is 44526022572.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286687672 + ... + 286688631.

It is an arithmetic number, because the mean of its divisors is an integer number (18061353576).

Almost surely, 2^275220625440 is an apocalyptic number.

275220625440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275220625440 is an abundant number, since it is smaller than the sum of its proper divisors (591724346208).

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

275220625440 is a wasteful number, since it uses less digits than its factorization.

275220625440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573376321 (or 573376313 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 39.

The spelling of 275220625440 in words is "two hundred seventy-five billion, two hundred twenty million, six hundred twenty-five thousand, four hundred forty".