55657304145173 has 8 divisors (see below), whose sum is σ = 57079810578840. Its totient is φ = 54237893483520.

The previous prime is 55657304145151. The next prime is 55657304145197. The reversal of 55657304145173 is 37154140375655.

It can be written as a sum of positive squares in 4 ways, for example, as 13867892977444 + 41789411167729 = 3723962^2 + 6464473^2 .

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 55657304145173 - 2³² = 55653009177877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55657304142173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 773906588 + ... + 773978501.

It is an arithmetic number, because the mean of its divisors is an integer number (7134976322355).

Almost surely, 2^{55657304145173} is an apocalyptic number.

It is an amenable number.

55657304145173 is a deficient number, since it is larger than the sum of its proper divisors (1422506433667).

55657304145173 is a wasteful number, since it uses less digits than its factorization.

55657304145173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1547886007.

The product of its (nonzero) digits is 26460000, while the sum is 56.

The spelling of 55657304145173 in words is "fifty-five trillion, six hundred fifty-seven billion, three hundred four million, one hundred forty-five thousand, one hundred seventy-three".