57208985856 has 405 divisors, whose sum is σ = 188754523419. Its totient is φ = 17221248000.

The previous prime is 57208985851. The next prime is 57208985861. The reversal of 57208985856 is 65858980275.

The square root of 57208985856 is 239184.

It is a perfect power (a square), and thus also a powerful number.

57208985856 is a `hidden beast` number, since 572 + 0 + 8 + 9 + 8 + 5 + 8 + 56 = 666.

It is an interprime number because it is at equal distance from previous prime (57208985851) and next prime (57208985861).

It is a junction number, because it is equal to n+sod(n) for n = 57208985793 and 57208985802.

It is not an unprimeable number, because it can be changed into a prime (57208985851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 378867381 + ... + 378867531.

Almost surely, 2^57208985856 is an apocalyptic number.

57208985856 is the 239184-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57208985856

57208985856 is an abundant number, since it is smaller than the sum of its proper divisors (131545537563).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57208985856 is an equidigital number, since it uses as much as digits as its factorization.

57208985856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 48384000, while the sum is 63.

The spelling of 57208985856 in words is "fifty-seven billion, two hundred eight million, nine hundred eighty-five thousand, eight hundred fifty-six".