57565041620 has 24 divisors (see below), whose sum is σ = 120987967464. Its totient is φ = 23006706176.

The previous prime is 57565041619. The next prime is 57565041629. The reversal of 57565041620 is 2614056575.

It can be written as a sum of positive squares in 4 ways, for example, as 7354091536 + 50210950084 = 85756^2 + 224078^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57565041629) 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 7 ways as a sum of consecutive naturals, for example, 1182449 + ... + 1230168.

It is an arithmetic number, because the mean of its divisors is an integer number (5041165311).

Almost surely, 2^57565041620 is an apocalyptic number.

It is an amenable number.

57565041620 is an abundant number, since it is smaller than the sum of its proper divisors (63422925844).

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

57565041620 is a wasteful number, since it uses less digits than its factorization.

57565041620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2413819 (or 2413817 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 41.

The spelling of 57565041620 in words is "fifty-seven billion, five hundred sixty-five million, forty-one thousand, six hundred twenty".