57353530 has 24 divisors (see below), whose sum is σ = 111791772. Its totient is φ = 21176064.

The previous prime is 57353519. The next prime is 57353531. The reversal of 57353530 is 3535375.

It can be written as a sum of positive squares in 6 ways, for example, as 21986721 + 35366809 = 4689^2 + 5947^2 .

It is a junction number, because it is equal to n+sod(n) for n = 57353492 and 57353501.

It is not an unprimeable number, because it can be changed into a prime (57353531) 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, 15279 + ... + 18658.

Almost surely, 2^57353530 is an apocalyptic number.

57353530 is a deficient number, since it is larger than the sum of its proper divisors (54438242).

57353530 is a wasteful number, since it uses less digits than its factorization.

57353530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33970 (or 33957 counting only the distinct ones).

The product of its (nonzero) digits is 23625, while the sum is 31.

The square root of 57353530 is about 7573.2113399799. The cubic root of 57353530 is about 385.6441233018.

The spelling of 57353530 in words is "fifty-seven million, three hundred fifty-three thousand, five hundred thirty".