57778563 has 16 divisors (see below), whose sum is σ = 85864320. Its totient is φ = 34344576.

The previous prime is 57778499. The next prime is 57778573. The reversal of 57778563 is 36587775.

It is not a de Polignac number, because 57778563 - 2⁶ = 57778499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57778573) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28845 + ... + 30782.

It is an arithmetic number, because the mean of its divisors is an integer number (5366520).

Almost surely, 2^57778563 is an apocalyptic number.

57778563 is a deficient number, since it is larger than the sum of its proper divisors (28085757).

57778563 is a wasteful number, since it uses less digits than its factorization.

57778563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59666.

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

The square root of 57778563 is about 7601.2211518940. The cubic root of 57778563 is about 386.5944178163.

The spelling of 57778563 in words is "fifty-seven million, seven hundred seventy-eight thousand, five hundred sixty-three".