57655145 has 4 divisors (see below), whose sum is σ = 69186180. Its totient is φ = 46124112.

The previous prime is 57655111. The next prime is 57655159. The reversal of 57655145 is 54155675.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8809024 + 48846121 = 2968^2 + 6989^2 .

It is a cyclic number.

It is not a de Polignac number, because 57655145 - 2¹² = 57651049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57655099 and 57655108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5765510 + ... + 5765519.

It is an arithmetic number, because the mean of its divisors is an integer number (17296545).

Almost surely, 2^57655145 is an apocalyptic number.

It is an amenable number.

57655145 is a deficient number, since it is larger than the sum of its proper divisors (11531035).

57655145 is a wasteful number, since it uses less digits than its factorization.

57655145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11531034.

The product of its digits is 105000, while the sum is 38.

The square root of 57655145 is about 7593.0985111481. The cubic root of 57655145 is about 386.3189596993.

The spelling of 57655145 in words is "fifty-seven million, six hundred fifty-five thousand, one hundred forty-five".