57735661 has 8 divisors (see below), whose sum is σ = 61402880. Its totient is φ = 54131328.

The previous prime is 57735659. The next prime is 57735683. The reversal of 57735661 is 16653775.

It is a happy number.

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 57735661 - 2¹ = 57735659 is a prime.

It is a super-4 number, since 4×57735661⁴ (a number of 32 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57735611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13821 + ... + 17506.

It is an arithmetic number, because the mean of its divisors is an integer number (7675360).

Almost surely, 2^57735661 is an apocalyptic number.

It is an amenable number.

57735661 is a deficient number, since it is larger than the sum of its proper divisors (3667219).

57735661 is a wasteful number, since it uses less digits than its factorization.

57735661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31443.

The product of its digits is 132300, while the sum is 40.

The square root of 57735661 is about 7598.3985812801. The cubic root of 57735661 is about 386.4987088450.

The spelling of 57735661 in words is "fifty-seven million, seven hundred thirty-five thousand, six hundred sixty-one".