53404334403545 has 8 divisors (see below), whose sum is σ = 65817233751624. Its totient is φ = 41568779211264.

The previous prime is 53404334403523. The next prime is 53404334403599. The reversal of 53404334403545 is 54530443340435.

It can be written as a sum of positive squares in 4 ways, for example, as 24744297204496 + 28660037199049 = 4974364^2 + 5353507^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53404334403545 - 2⁸ = 53404334403289 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53404334403545.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144336038744 + ... + 144336039113.

It is an arithmetic number, because the mean of its divisors is an integer number (8227154218953).

Almost surely, 2^{53404334403545} is an apocalyptic number.

It is an amenable number.

53404334403545 is a deficient number, since it is larger than the sum of its proper divisors (12412899348079).

53404334403545 is a wasteful number, since it uses less digits than its factorization.

53404334403545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288672077899.

The product of its (nonzero) digits is 10368000, while the sum is 47.

The spelling of 53404334403545 in words is "fifty-three trillion, four hundred four billion, three hundred thirty-four million, four hundred three thousand, five hundred forty-five".