57055361 has 4 divisors (see below), whose sum is σ = 62242224. Its totient is φ = 51868500.

The previous prime is 57055351. The next prime is 57055373. The reversal of 57055361 is 16355075.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57055361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57055331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2593415 + ... + 2593436.

It is an arithmetic number, because the mean of its divisors is an integer number (15560556).

Almost surely, 2^57055361 is an apocalyptic number.

It is an amenable number.

57055361 is a deficient number, since it is larger than the sum of its proper divisors (5186863).

57055361 is a wasteful number, since it uses less digits than its factorization.

57055361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5186862.

The product of its (nonzero) digits is 15750, while the sum is 32.

The square root of 57055361 is about 7553.4999172569. The cubic root of 57055361 is about 384.9746674736.

The spelling of 57055361 in words is "fifty-seven million, fifty-five thousand, three hundred sixty-one".