53404442545 has 16 divisors (see below), whose sum is σ = 65865765888. Its totient is φ = 41548178880.

The previous prime is 53404442519. The next prime is 53404442563. The reversal of 53404442545 is 54524440435.

It is not a de Polignac number, because 53404442545 - 2¹⁷ = 53404311473 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53404442498 and 53404442507.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 686841 + ... + 760630.

It is an arithmetic number, because the mean of its divisors is an integer number (4116610368).

Almost surely, 2^53404442545 is an apocalyptic number.

It is an amenable number.

53404442545 is a deficient number, since it is larger than the sum of its proper divisors (12461323343).

53404442545 is a wasteful number, since it uses less digits than its factorization.

53404442545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1447680.

The product of its (nonzero) digits is 768000, while the sum is 40.

The spelling of 53404442545 in words is "fifty-three billion, four hundred four million, four hundred forty-two thousand, five hundred forty-five".