57250212 has 12 divisors (see below), whose sum is σ = 133583856. Its totient is φ = 19083400.

The previous prime is 57250201. The next prime is 57250213. The reversal of 57250212 is 21205275.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (57250213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2385414 + ... + 2385437.

It is an arithmetic number, because the mean of its divisors is an integer number (11131988).

Almost surely, 2^57250212 is an apocalyptic number.

It is an amenable number.

57250212 is an abundant number, since it is smaller than the sum of its proper divisors (76333644).

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

57250212 is a wasteful number, since it uses less digits than its factorization.

57250212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4770858 (or 4770856 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 57250212 is about 7566.3869845521. The cubic root of 57250212 is about 385.4124146415.

Adding to 57250212 its reverse (21205275), we get a palindrome (78455487).

The spelling of 57250212 in words is "fifty-seven million, two hundred fifty thousand, two hundred twelve".