57605861 has 8 divisors (see below), whose sum is σ = 61047000. Its totient is φ = 54261760.

The previous prime is 57605837. The next prime is 57605893. The reversal of 57605861 is 16850675.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12460900 + 45144961 = 3530^2 + 6719^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57605861 - 2⁶ = 57605797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57601861) 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, 23036 + ... + 25413.

It is an arithmetic number, because the mean of its divisors is an integer number (7630875).

Almost surely, 2^57605861 is an apocalyptic number.

It is an amenable number.

57605861 is a deficient number, since it is larger than the sum of its proper divisors (3441139).

57605861 is a wasteful number, since it uses less digits than its factorization.

57605861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48519.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 57605861 is about 7589.8525018606. The cubic root of 57605861 is about 386.2088523176.

The spelling of 57605861 in words is "fifty-seven million, six hundred five thousand, eight hundred sixty-one".