57311112 has 32 divisors (see below), whose sum is σ = 146774880. Its totient is φ = 18637440.

The previous prime is 57311099. The next prime is 57311117. The reversal of 57311112 is 21111375.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (57311117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28138 + ... + 30105.

It is an arithmetic number, because the mean of its divisors is an integer number (4586715).

Almost surely, 2^57311112 is an apocalyptic number.

It is an amenable number.

57311112 is an abundant number, since it is smaller than the sum of its proper divisors (89463768).

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

57311112 is a wasteful number, since it uses less digits than its factorization.

57311112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58293 (or 58289 counting only the distinct ones).

The product of its digits is 210, while the sum is 21.

The square root of 57311112 is about 7570.4102927120. The cubic root of 57311112 is about 385.5490272262.

Adding to 57311112 its reverse (21111375), we get a palindrome (78422487).

The spelling of 57311112 in words is "fifty-seven million, three hundred eleven thousand, one hundred twelve".