57516112121 has 48 divisors (see below), whose sum is σ = 69196837248. Its totient is φ = 47422003200.

The previous prime is 57516112117. The next prime is 57516112127. The reversal of 57516112121 is 12121161575.

It is not a de Polignac number, because 57516112121 - 2² = 57516112117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57516112127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11317301 + ... + 11322381.

It is an arithmetic number, because the mean of its divisors is an integer number (1441600776).

Almost surely, 2^57516112121 is an apocalyptic number.

It is an amenable number.

57516112121 is a deficient number, since it is larger than the sum of its proper divisors (11680725127).

57516112121 is a wasteful number, since it uses less digits than its factorization.

57516112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5282 (or 5265 counting only the distinct ones).

The product of its digits is 4200, while the sum is 32.

Adding to 57516112121 its reverse (12121161575), we get a palindrome (69637273696).

The spelling of 57516112121 in words is "fifty-seven billion, five hundred sixteen million, one hundred twelve thousand, one hundred twenty-one".