57785249 has 8 divisors (see below), whose sum is σ = 60133920. Its totient is φ = 55482336.

The previous prime is 57785237. The next prime is 57785257. The reversal of 57785249 is 94258775.

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 a de Polignac number, because none of the positive numbers 2^k-57785249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57385249) 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, 8852 + ... + 13925.

It is an arithmetic number, because the mean of its divisors is an integer number (7516740).

Almost surely, 2^57785249 is an apocalyptic number.

57785249 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

57785249 is a deficient number, since it is larger than the sum of its proper divisors (2348671).

57785249 is a wasteful number, since it uses less digits than its factorization.

57785249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22879.

The product of its digits is 705600, while the sum is 47.

The square root of 57785249 is about 7601.6609369269. The cubic root of 57785249 is about 386.6093291747.

The spelling of 57785249 in words is "fifty-seven million, seven hundred eighty-five thousand, two hundred forty-nine".