57423381 has 4 divisors (see below), whose sum is σ = 76564512. Its totient is φ = 38282252.

The previous prime is 57423367. The next prime is 57423383. The reversal of 57423381 is 18332475.

57423381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57423381 - 2⁵ = 57423349 is a prime.

It is a super-2 number, since 2×57423381² = 6594889370942322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57423383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9570561 + ... + 9570566.

It is an arithmetic number, because the mean of its divisors is an integer number (19141128).

Almost surely, 2^57423381 is an apocalyptic number.

It is an amenable number.

57423381 is a deficient number, since it is larger than the sum of its proper divisors (19141131).

57423381 is a wasteful number, since it uses less digits than its factorization.

57423381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19141130.

The product of its digits is 20160, while the sum is 33.

The square root of 57423381 is about 7577.8216526915. The cubic root of 57423381 is about 385.8006187506.

The spelling of 57423381 in words is "fifty-seven million, four hundred twenty-three thousand, three hundred eighty-one".