57781241 has 12 divisors (see below), whose sum is σ = 69384960. Its totient is φ = 47927880.

The previous prime is 57781219. The next prime is 57781271. The reversal of 57781241 is 14218775.

It is not a de Polignac number, because 57781241 - 2¹⁴ = 57764857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57781201) 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 11 ways as a sum of consecutive naturals, for example, 17501 + ... + 20538.

It is an arithmetic number, because the mean of its divisors is an integer number (5782080).

Almost surely, 2^57781241 is an apocalyptic number.

It is an amenable number.

57781241 is a deficient number, since it is larger than the sum of its proper divisors (11603719).

57781241 is a wasteful number, since it uses less digits than its factorization.

57781241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38084 (or 38077 counting only the distinct ones).

The product of its digits is 15680, while the sum is 35.

The square root of 57781241 is about 7601.3973057590. The cubic root of 57781241 is about 386.6003905266.

It can be divided in two parts, 577 and 81241, that added together give a palindrome (81818).

The spelling of 57781241 in words is "fifty-seven million, seven hundred eighty-one thousand, two hundred forty-one".