57771028025 has 12 divisors (see below), whose sum is σ = 71643327852. Its totient is φ = 46212143040.

The previous prime is 57771028009. The next prime is 57771028027. The reversal of 57771028025 is 52082017775.

It can be written as a sum of positive squares in 6 ways, for example, as 2818760464 + 54952267561 = 53092^2 + 234419^2 .

It is not a de Polignac number, because 57771028025 - 2⁴ = 57771028009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57771028027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146507 + ... + 370143.

It is an arithmetic number, because the mean of its divisors is an integer number (5970277321).

Almost surely, 2^57771028025 is an apocalyptic number.

It is an amenable number.

57771028025 is a deficient number, since it is larger than the sum of its proper divisors (13872299827).

57771028025 is a wasteful number, since it uses less digits than its factorization.

57771028025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233980 (or 233975 counting only the distinct ones).

The product of its (nonzero) digits is 274400, while the sum is 44.

The spelling of 57771028025 in words is "fifty-seven billion, seven hundred seventy-one million, twenty-eight thousand, twenty-five".