57281350 has 24 divisors (see below), whose sum is σ = 121764528. Its totient is φ = 19639200.

The previous prime is 57281327. The next prime is 57281359. The reversal of 57281350 is 5318275.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57281359) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81481 + ... + 82180.

It is an arithmetic number, because the mean of its divisors is an integer number (5073522).

Almost surely, 2^57281350 is an apocalyptic number.

57281350 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

57281350 is an abundant number, since it is smaller than the sum of its proper divisors (64483178).

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

57281350 is a wasteful number, since it uses less digits than its factorization.

57281350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163680 (or 163675 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 57281350 is about 7568.4443579906. Note that the first 3 decimals coincide. The cubic root of 57281350 is about 385.4822763722.

The spelling of 57281350 in words is "fifty-seven million, two hundred eighty-one thousand, three hundred fifty".