57771392055 has 32 divisors (see below), whose sum is σ = 99721552896. Its totient is φ = 28390729344.

The previous prime is 57771392047. The next prime is 57771392057. The reversal of 57771392055 is 55029317775.

It is not a de Polignac number, because 57771392055 - 2³ = 57771392047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57771391989 and 57771392007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57771392057) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 153327 + ... + 372896.

It is an arithmetic number, because the mean of its divisors is an integer number (3116298528).

Almost surely, 2^57771392055 is an apocalyptic number.

57771392055 is a deficient number, since it is larger than the sum of its proper divisors (41950160841).

57771392055 is a wasteful number, since it uses less digits than its factorization.

57771392055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526807.

The product of its (nonzero) digits is 2315250, while the sum is 51.

It can be divided in two parts, 57771 and 392055, that added together give a triangular number (449826 = T₉₄₈).

The spelling of 57771392055 in words is "fifty-seven billion, seven hundred seventy-one million, three hundred ninety-two thousand, fifty-five".