57331345 has 8 divisors (see below), whose sum is σ = 69466176. Its totient is φ = 45419376.

The previous prime is 57331333. The next prime is 57331367. The reversal of 57331345 is 54313375.

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 57331345 - 2⁷ = 57331217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55147 + ... + 56176.

It is an arithmetic number, because the mean of its divisors is an integer number (8683272).

Almost surely, 2^57331345 is an apocalyptic number.

It is an amenable number.

57331345 is a deficient number, since it is larger than the sum of its proper divisors (12134831).

57331345 is a wasteful number, since it uses less digits than its factorization.

57331345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111431.

The product of its digits is 18900, while the sum is 31.

The square root of 57331345 is about 7571.7464960206. The cubic root of 57331345 is about 385.5943930397.

The spelling of 57331345 in words is "fifty-seven million, three hundred thirty-one thousand, three hundred forty-five".