57112236 has 48 divisors (see below), whose sum is σ = 150595200. Its totient is φ = 18712656.

The previous prime is 57112219. The next prime is 57112249. The reversal of 57112236 is 63221175.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 1891 + ... + 10853.

It is an arithmetic number, because the mean of its divisors is an integer number (3137400).

Almost surely, 2^57112236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57112236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75297600).

57112236 is an abundant number, since it is smaller than the sum of its proper divisors (93482964).

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

57112236 is a wasteful number, since it uses less digits than its factorization.

57112236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9035 (or 9027 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 57112236 is about 7557.2637905528. The cubic root of 57112236 is about 385.1025442261.

The spelling of 57112236 in words is "fifty-seven million, one hundred twelve thousand, two hundred thirty-six".