57115523 has 4 divisors (see below), whose sum is σ = 57360888. Its totient is φ = 56870160.

The previous prime is 57115519. The next prime is 57115543. The reversal of 57115523 is 32551175.

It is a happy number.

57115523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57115523 - 2² = 57115519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57115543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122333 + ... + 122798.

It is an arithmetic number, because the mean of its divisors is an integer number (14340222).

Almost surely, 2^57115523 is an apocalyptic number.

57115523 is a deficient number, since it is larger than the sum of its proper divisors (245365).

57115523 is a wasteful number, since it uses less digits than its factorization.

57115523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245364.

The product of its digits is 5250, while the sum is 29.

The square root of 57115523 is about 7557.4812603142. The cubic root of 57115523 is about 385.1099320637.

Adding to 57115523 its reverse (32551175), we get a palindrome (89666698).

The spelling of 57115523 in words is "fifty-seven million, one hundred fifteen thousand, five hundred twenty-three".