275248145540 has 12 divisors (see below), whose sum is σ = 578021105676. Its totient is φ = 110099258208.

The previous prime is 275248145537. The next prime is 275248145563. The reversal of 275248145540 is 45541842572.

It can be written as a sum of positive squares in 2 ways, for example, as 71001997444 + 204246148096 = 266462^2 + 451936^2 .

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 3 ways as a sum of consecutive naturals, for example, 6881203619 + ... + 6881203658.

It is an arithmetic number, because the mean of its divisors is an integer number (48168425473).

Almost surely, 2^275248145540 is an apocalyptic number.

275248145540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275248145540 is an abundant number, since it is smaller than the sum of its proper divisors (302772960136).

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

275248145540 is a wasteful number, since it uses less digits than its factorization.

275248145540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13762407286 (or 13762407284 counting only the distinct ones).

The product of its (nonzero) digits is 1792000, while the sum is 47.

The spelling of 275248145540 in words is "two hundred seventy-five billion, two hundred forty-eight million, one hundred forty-five thousand, five hundred forty".