57365778 has 32 divisors (see below), whose sum is σ = 116730432. Its totient is φ = 18792000.

The previous prime is 57365753. The next prime is 57365783. The reversal of 57365778 is 87756375.

57365778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109425 + ... + 109947.

It is an arithmetic number, because the mean of its divisors is an integer number (3647826).

Almost surely, 2^57365778 is an apocalyptic number.

57365778 is an abundant number, since it is smaller than the sum of its proper divisors (59364654).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57365778 is a wasteful number, since it uses less digits than its factorization.

57365778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810.

The product of its digits is 1234800, while the sum is 48.

The square root of 57365778 is about 7574.0199365991. The cubic root of 57365778 is about 385.6715731265.

The spelling of 57365778 in words is "fifty-seven million, three hundred sixty-five thousand, seven hundred seventy-eight".