57157055 has 8 divisors (see below), whose sum is σ = 69882912. Its totient is φ = 44862688.

The previous prime is 57157033. The next prime is 57157081. The reversal of 57157055 is 55075175.

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

It is a cyclic number.

It is not a de Polignac number, because 57157055 - 2¹² = 57152959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107579 + ... + 108108.

It is an arithmetic number, because the mean of its divisors is an integer number (8735364).

Almost surely, 2^57157055 is an apocalyptic number.

57157055 is a deficient number, since it is larger than the sum of its proper divisors (12725857).

57157055 is a wasteful number, since it uses less digits than its factorization.

57157055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215745.

The product of its (nonzero) digits is 30625, while the sum is 35.

The square root of 57157055 is about 7560.2285018378. The cubic root of 57157055 is about 385.2032546820.

The spelling of 57157055 in words is "fifty-seven million, one hundred fifty-seven thousand, fifty-five".