57490212 has 48 divisors (see below), whose sum is σ = 147555072. Its totient is φ = 17310720.

The previous prime is 57490207. The next prime is 57490231. The reversal of 57490212 is 21209475.

It is a self number, because there is not a number n which added to its sum of digits gives 57490212.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3412 + ... + 11252.

It is an arithmetic number, because the mean of its divisors is an integer number (3074064).

Almost surely, 2^57490212 is an apocalyptic number.

57490212 is a gapful number since it is divisible by the number (52) 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 57490212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73777536).

57490212 is an abundant number, since it is smaller than the sum of its proper divisors (90064860).

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

57490212 is a wasteful number, since it uses less digits than its factorization.

57490212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7908 (or 7906 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 57490212 is about 7582.2300149758. The cubic root of 57490212 is about 385.9502293834.

Adding to 57490212 its reverse (21209475), we get a palindrome (78699687).

The spelling of 57490212 in words is "fifty-seven million, four hundred ninety thousand, two hundred twelve".