57113212 has 48 divisors (see below), whose sum is σ = 111022240. Its totient is φ = 25698816.

The previous prime is 57113207. The next prime is 57113219. The reversal of 57113212 is 21231175.

It is a happy number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57113219) 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 15 ways as a sum of consecutive naturals, for example, 588748 + ... + 588844.

Almost surely, 2^57113212 is an apocalyptic number.

57113212 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

57113212 is a deficient number, since it is larger than the sum of its proper divisors (53909028).

57113212 is a wasteful number, since it uses less digits than its factorization.

57113212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207 (or 179 counting only the distinct ones).

The product of its digits is 420, while the sum is 22.

The square root of 57113212 is about 7557.3283639127. The cubic root of 57113212 is about 385.1047379063.

Adding to 57113212 its reverse (21231175), we get a palindrome (78344387).

The spelling of 57113212 in words is "fifty-seven million, one hundred thirteen thousand, two hundred twelve".