57720355003505 has 16 divisors (see below), whose sum is σ = 69316224906240. Its totient is φ = 46141756089792.

The previous prime is 57720355003459. The next prime is 57720355003517. The reversal of 57720355003505 is 50530055302775.

It is a cyclic number.

It is not a de Polignac number, because 57720355003505 - 2¹⁴ = 57720354987121 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 57720355003505.

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, 100808216 + ... + 101379174.

It is an arithmetic number, because the mean of its divisors is an integer number (4332264056640).

Almost surely, 2^{57720355003505} is an apocalyptic number.

It is an amenable number.

57720355003505 is a deficient number, since it is larger than the sum of its proper divisors (11595869902735).

57720355003505 is a wasteful number, since it uses less digits than its factorization.

57720355003505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586048.

The product of its (nonzero) digits is 2756250, while the sum is 47.

The spelling of 57720355003505 in words is "fifty-seven trillion, seven hundred twenty billion, three hundred fifty-five million, three thousand, five hundred five".