57044478305 has 8 divisors (see below), whose sum is σ = 68473593000. Its totient is φ = 45622103296.

The previous prime is 57044478269. The next prime is 57044478311. The reversal of 57044478305 is 50387444075.

It can be written as a sum of positive squares in 4 ways, for example, as 6028124881 + 51016353424 = 77641^2 + 225868^2 .

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 57044478305 - 2¹² = 57044474209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57044478305.

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, 1666280 + ... + 1700169.

It is an arithmetic number, because the mean of its divisors is an integer number (8559199125).

Almost surely, 2^57044478305 is an apocalyptic number.

It is an amenable number.

57044478305 is a deficient number, since it is larger than the sum of its proper divisors (11429114695).

57044478305 is a wasteful number, since it uses less digits than its factorization.

57044478305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3369843.

The product of its (nonzero) digits is 1881600, while the sum is 47.

The spelling of 57044478305 in words is "fifty-seven billion, forty-four million, four hundred seventy-eight thousand, three hundred five".