57270 has 32 divisors (see below), whose sum is σ = 145152. Its totient is φ = 14432.

The previous prime is 57269. The next prime is 57271. The reversal of 57270 is 7275.

It is an interprime number because it is at equal distance from previous prime (57269) and next prime (57271).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 649 + ... + 731.

It is an arithmetic number, because the mean of its divisors is an integer number (4536).

2⁵⁷²⁷⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72576).

57270 is an abundant number, since it is smaller than the sum of its proper divisors (87882).

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

57270 is a wasteful number, since it uses less digits than its factorization.

57270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116.

The product of its (nonzero) digits is 490, while the sum is 21.

The square root of 57270 is about 239.3115124686. The cubic root of 57270 is about 38.5456814258.

Adding to 57270 its sum of digits (21), we get a triangular number (57291 = T₃₃₈).

The spelling of 57270 in words is "fifty-seven thousand, two hundred seventy".