57275424 has 120 divisors (see below), whose sum is σ = 177463440. Its totient is φ = 18071424.

The previous prime is 57275411. The next prime is 57275501. The reversal of 57275424 is 42457275.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 48667 + ... + 49829.

It is an arithmetic number, because the mean of its divisors is an integer number (1478862).

Almost surely, 2^57275424 is an apocalyptic number.

57275424 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57275424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88731720).

57275424 is an abundant number, since it is smaller than the sum of its proper divisors (120188016).

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

57275424 is a wasteful number, since it uses less digits than its factorization.

57275424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1204 (or 1187 counting only the distinct ones).

The product of its digits is 78400, while the sum is 36.

The square root of 57275424 is about 7568.0528539381. The cubic root of 57275424 is about 385.4689826518.

The spelling of 57275424 in words is "fifty-seven million, two hundred seventy-five thousand, four hundred twenty-four".