57242112 has 80 divisors (see below), whose sum is σ = 154677600. Its totient is φ = 18808832.

The previous prime is 57242083. The next prime is 57242203. The reversal of 57242112 is 21124275.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127264 + ... + 127712.

It is an arithmetic number, because the mean of its divisors is an integer number (1933470).

Almost surely, 2^57242112 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 57242112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77338800).

57242112 is an abundant number, since it is smaller than the sum of its proper divisors (97435488).

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

57242112 is an equidigital number, since it uses as much as digits as its factorization.

57242112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553 (or 537 counting only the distinct ones).

The product of its digits is 1120, while the sum is 24.

The square root of 57242112 is about 7565.8517035427. The cubic root of 57242112 is about 385.3942371962.

Adding to 57242112 its reverse (21124275), we get a palindrome (78366387).

The spelling of 57242112 in words is "fifty-seven million, two hundred forty-two thousand, one hundred twelve".