57855530 has 8 divisors (see below), whose sum is σ = 104139972. Its totient is φ = 23142208.

The previous prime is 57855521. The next prime is 57855533. The reversal of 57855530 is 3555875.

It can be written as a sum of positive squares in 2 ways, for example, as 56235001 + 1620529 = 7499^2 + 1273^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (57855533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2892767 + ... + 2892786.

Almost surely, 2^57855530 is an apocalyptic number.

57855530 is a deficient number, since it is larger than the sum of its proper divisors (46284442).

57855530 is a wasteful number, since it uses less digits than its factorization.

57855530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5785560.

The product of its (nonzero) digits is 105000, while the sum is 38.

The square root of 57855530 is about 7606.2822719118. The cubic root of 57855530 is about 386.7660028503.

It can be divided in two parts, 57855 and 530, that added together give a palindrome (58385).

The spelling of 57855530 in words is "fifty-seven million, eight hundred fifty-five thousand, five hundred thirty".