57123424 has 48 divisors (see below), whose sum is σ = 120960000. Its totient is φ = 26469504.

The previous prime is 57123413. The next prime is 57123433. The reversal of 57123424 is 42432175.

It is a junction number, because it is equal to n+sod(n) for n = 57123392 and 57123401.

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, 27577 + ... + 29575.

It is an arithmetic number, because the mean of its divisors is an integer number (2520000).

Almost surely, 2^57123424 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 57123424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60480000).

57123424 is an abundant number, since it is smaller than the sum of its proper divisors (63836576).

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

57123424 is a wasteful number, since it uses less digits than its factorization.

57123424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2075 (or 2067 counting only the distinct ones).

The product of its digits is 6720, while the sum is 28.

The square root of 57123424 is about 7558.0039693030. The cubic root of 57123424 is about 385.1276891352.

Adding to 57123424 its reverse (42432175), we get a palindrome (99555599).

The spelling of 57123424 in words is "fifty-seven million, one hundred twenty-three thousand, four hundred twenty-four".