57016505 has 16 divisors (see below), whose sum is σ = 84209664. Its totient is φ = 36089280.

The previous prime is 57016501. The next prime is 57016507. The reversal of 57016505 is 50561075.

It is not a de Polignac number, because 57016505 - 2² = 57016501 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (57016501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62201 + ... + 63110.

It is an arithmetic number, because the mean of its divisors is an integer number (5263104).

Almost surely, 2^57016505 is an apocalyptic number.

It is an amenable number.

57016505 is a deficient number, since it is larger than the sum of its proper divisors (27193159).

57016505 is a wasteful number, since it uses less digits than its factorization.

57016505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125336.

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 57016505 is about 7550.9274264821. The cubic root of 57016505 is about 384.8872554559.

The spelling of 57016505 in words is "fifty-seven million, sixteen thousand, five hundred five".