57061143 has 6 divisors (see below), whose sum is σ = 82421664. Its totient is φ = 38040756.

The previous prime is 57061139. The next prime is 57061157. The reversal of 57061143 is 34116075.

57061143 is a `hidden beast` number, since 5 + 7 + 0 + 611 + 43 = 666.

It is not a de Polignac number, because 57061143 - 2² = 57061139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57061343) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3170055 + ... + 3170072.

It is an arithmetic number, because the mean of its divisors is an integer number (13736944).

Almost surely, 2^57061143 is an apocalyptic number.

57061143 is a deficient number, since it is larger than the sum of its proper divisors (25360521).

57061143 is a wasteful number, since it uses less digits than its factorization.

57061143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6340133 (or 6340130 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 57061143 is about 7553.8826440447. The cubic root of 57061143 is about 384.9876715004.

The spelling of 57061143 in words is "fifty-seven million, sixty-one thousand, one hundred forty-three".