57138417 has 48 divisors (see below), whose sum is σ = 100638720. Its totient is φ = 30530016.

The previous prime is 57138413. The next prime is 57138539. The reversal of 57138417 is 71483175.

57138417 is a `hidden beast` number, since 571 + 3 + 84 + 1 + 7 = 666.

It is not a de Polignac number, because 57138417 - 2² = 57138413 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57138413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67684 + ... + 68522.

It is an arithmetic number, because the mean of its divisors is an integer number (2096640).

Almost surely, 2^57138417 is an apocalyptic number.

It is an amenable number.

57138417 is a deficient number, since it is larger than the sum of its proper divisors (43500303).

57138417 is a wasteful number, since it uses less digits than its factorization.

57138417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922 (or 919 counting only the distinct ones).

The product of its digits is 23520, while the sum is 36.

The square root of 57138417 is about 7558.9957666346. The cubic root of 57138417 is about 385.1613805933.

The spelling of 57138417 in words is "fifty-seven million, one hundred thirty-eight thousand, four hundred seventeen".