57227500 has 60 divisors (see below), whose sum is σ = 136587528. Its totient is φ = 20800000.

The previous prime is 57227497. The next prime is 57227501. The reversal of 57227500 is 572275.

It is not an unprimeable number, because it can be changed into a prime (57227501) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 26460 + ... + 28540.

Almost surely, 2^57227500 is an apocalyptic number.

57227500 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 57227500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68293764).

57227500 is an abundant number, since it is smaller than the sum of its proper divisors (79360028).

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

57227500 is a wasteful number, since it uses less digits than its factorization.

57227500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2116 (or 2099 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 28.

The square root of 57227500 is about 7564.8859872440. The cubic root of 57227500 is about 385.3614416450.

Adding to 57227500 its reverse (572275), we get a palindrome (57799775).

Multiplying 57227500 by its reverse (572275), we get a square (32749867562500 = 5722750²).

57227500 divided by its reverse (572275) gives a square (100 = 10²).

The spelling of 57227500 in words is "fifty-seven million, two hundred twenty-seven thousand, five hundred".