57565925041 has 3 divisors (see below), whose sum is σ = 57566164971. Its totient is φ = 57565685112.

The previous prime is 57565925033. The next prime is 57565925063. The reversal of 57565925041 is 14052956575.

The square root of 57565925041 is 239929.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 15557323441 + 42008601600 = 124729^2 + 204960^2 .

It is not a de Polignac number, because 57565925041 - 2³ = 57565925033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57565925341) by changing a digit.

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 2 ways as a sum of consecutive naturals, for example, 119965 + ... + 359893.

It is an arithmetic number, because the mean of its divisors is an integer number (19188721657).

Almost surely, 2^57565925041 is an apocalyptic number.

57565925041 is the 239929-th square number.

57565925041 is the 119965-th centered octagonal number.

It is an amenable number.

57565925041 is a deficient number, since it is larger than the sum of its proper divisors (239930).

57565925041 is an frugal number, since it uses more digits than its factorization.

57565925041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479858 (or 239929 counting only the distinct ones).

The product of its (nonzero) digits is 1890000, while the sum is 49.

Multiplying 57565925041 by its sum of digits (49), we get a square (2820730327009 = 1679503²).

The spelling of 57565925041 in words is "fifty-seven billion, five hundred sixty-five million, nine hundred twenty-five thousand, forty-one".