57807381 has 16 divisors (see below), whose sum is σ = 78624000. Its totient is φ = 37771968.

The previous prime is 57807371. The next prime is 57807391. The reversal of 57807381 is 18370875.

It is an interprime number because it is at equal distance from previous prime (57807371) and next prime (57807391).

It is not a de Polignac number, because 57807381 - 2⁶ = 57807317 is a prime.

It is a super-2 number, since 2×57807381² = 6683386596158322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57807331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34495 + ... + 36131.

It is an arithmetic number, because the mean of its divisors is an integer number (4914000).

Almost surely, 2^57807381 is an apocalyptic number.

It is an amenable number.

57807381 is a deficient number, since it is larger than the sum of its proper divisors (20816619).

57807381 is a wasteful number, since it uses less digits than its factorization.

57807381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1868.

The product of its (nonzero) digits is 47040, while the sum is 39.

The square root of 57807381 is about 7603.1165320545. The cubic root of 57807381 is about 386.6586805558.

The spelling of 57807381 in words is "fifty-seven million, eight hundred seven thousand, three hundred eighty-one".