57058157 has 8 divisors (see below), whose sum is σ = 62607384. Its totient is φ = 51674688.

The previous prime is 57058153. The next prime is 57058201. The reversal of 57058157 is 75185075.

It can be written as a sum of positive squares in 4 ways, for example, as 9916201 + 47141956 = 3149^2 + 6866^2 .

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

It is not a de Polignac number, because 57058157 - 2² = 57058153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57058157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57058151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40718 + ... + 42095.

It is an arithmetic number, because the mean of its divisors is an integer number (7825923).

Almost surely, 2^57058157 is an apocalyptic number.

It is an amenable number.

57058157 is a deficient number, since it is larger than the sum of its proper divisors (5549227).

57058157 is a wasteful number, since it uses less digits than its factorization.

57058157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82879.

The product of its (nonzero) digits is 49000, while the sum is 38.

The square root of 57058157 is about 7553.6849947559. The cubic root of 57058157 is about 384.9809559366.

The spelling of 57058157 in words is "fifty-seven million, fifty-eight thousand, one hundred fifty-seven".