57489897 has 8 divisors (see below), whose sum is σ = 78725056. Its totient is φ = 37290672.

The previous prime is 57489893. The next prime is 57489911. The reversal of 57489897 is 79898475.

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

It is not a de Polignac number, because 57489897 - 2² = 57489893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57489893) 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, 258853 + ... + 259074.

It is an arithmetic number, because the mean of its divisors is an integer number (9840632).

Almost surely, 2^57489897 is an apocalyptic number.

It is an amenable number.

57489897 is a deficient number, since it is larger than the sum of its proper divisors (21235159).

57489897 is a wasteful number, since it uses less digits than its factorization.

57489897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517967.

The product of its digits is 5080320, while the sum is 57.

The square root of 57489897 is about 7582.2092426944. The cubic root of 57489897 is about 385.9495244834.

The spelling of 57489897 in words is "fifty-seven million, four hundred eighty-nine thousand, eight hundred ninety-seven".