57113661 has 8 divisors (see below), whose sum is σ = 83074464. Its totient is φ = 34614320.

The previous prime is 57113657. The next prime is 57113663. The reversal of 57113661 is 16631175.

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 57113661 - 2² = 57113657 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57113663) 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, 865326 + ... + 865391.

It is an arithmetic number, because the mean of its divisors is an integer number (10384308).

Almost surely, 2^57113661 is an apocalyptic number.

It is an amenable number.

57113661 is a deficient number, since it is larger than the sum of its proper divisors (25960803).

57113661 is a wasteful number, since it uses less digits than its factorization.

57113661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730731.

The product of its digits is 3780, while the sum is 30.

The square root of 57113661 is about 7557.3580701195. The cubic root of 57113661 is about 385.1057470807.

The spelling of 57113661 in words is "fifty-seven million, one hundred thirteen thousand, six hundred sixty-one".