57503056 has 40 divisors (see below), whose sum is σ = 124132680. Its totient is φ = 25622016.

The previous prime is 57503051. The next prime is 57503057. The reversal of 57503056 is 65030575.

It can be written as a sum of positive squares in 4 ways, for example, as 46656 + 57456400 = 216^2 + 7580^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57503051) 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, 1266 + ... + 10798.

It is an arithmetic number, because the mean of its divisors is an integer number (3103317).

Almost surely, 2^57503056 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 57503056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62066340).

57503056 is an abundant number, since it is smaller than the sum of its proper divisors (66629624).

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

57503056 is a wasteful number, since it uses less digits than its factorization.

57503056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9583 (or 9577 counting only the distinct ones).

The product of its (nonzero) digits is 15750, while the sum is 31.

The square root of 57503056 is about 7583.0769480469. The cubic root of 57503056 is about 385.9789692069.

The spelling of 57503056 in words is "fifty-seven million, five hundred three thousand, fifty-six".