Subtracting from 57000000 its product of nonzero digits (35), we obtain a palindrome (56999965).
Adding to 57000000 its reverse (75), we get a palindrome (57000075).
It is a self number, because there is not a number n which added to its sum of digits gives 57000000.
It is an unprimeable number.
Almost surely, 257000000 is an apocalyptic number.
57000000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 57000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99217480).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
57000000 is an frugal number, since it uses more digits than its factorization.
57000000 is an odious number, because the sum of its binary digits is odd.
The square root of 57000000 is about 7549.8344352707. The cubic root of 57000000 is about 384.8501131277.