53280449545 has 16 divisors (see below), whose sum is σ = 64681455888. Its totient is φ = 42128916480.

The previous prime is 53280449543. The next prime is 53280449603. The reversal of 53280449545 is 54594408235.

It can be written as a sum of positive squares in 8 ways, for example, as 3521116921 + 49759332624 = 59339^2 + 223068^2 .

It is not a de Polignac number, because 53280449545 - 2¹ = 53280449543 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53280449543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294585 + ... + 439705.

It is an arithmetic number, because the mean of its divisors is an integer number (4042590993).

Almost surely, 2^53280449545 is an apocalyptic number.

It is an amenable number.

53280449545 is a deficient number, since it is larger than the sum of its proper divisors (11401006343).

53280449545 is a wasteful number, since it uses less digits than its factorization.

53280449545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145980.

The product of its (nonzero) digits is 3456000, while the sum is 49.

The spelling of 53280449545 in words is "fifty-three billion, two hundred eighty million, four hundred forty-nine thousand, five hundred forty-five".