57080921 has 8 divisors (see below), whose sum is σ = 60228000. Its totient is φ = 53948160.

The previous prime is 57080893. The next prime is 57080929. The reversal of 57080921 is 12908075.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57080921 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57080929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5186 + ... + 11876.

It is an arithmetic number, because the mean of its divisors is an integer number (7528500).

Almost surely, 2^57080921 is an apocalyptic number.

It is an amenable number.

57080921 is a deficient number, since it is larger than the sum of its proper divisors (3147079).

57080921 is a wasteful number, since it uses less digits than its factorization.

57080921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7159.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 57080921 is about 7555.1916587205. The cubic root of 57080921 is about 385.0321466383.

Adding to 57080921 its reverse (12908075), we get a palindrome (69988996).

The spelling of 57080921 in words is "fifty-seven million, eighty thousand, nine hundred twenty-one".