57104381 has 4 divisors (see below), whose sum is σ = 57310812. Its totient is φ = 56897952.

The previous prime is 57104371. The next prime is 57104417. The reversal of 57104381 is 18340175.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35295481 + 21808900 = 5941^2 + 4670^2 .

It is a cyclic number.

It is not a de Polignac number, because 57104381 - 2¹⁴ = 57087997 is a prime.

It is a super-2 number, since 2×57104381² = 6521820658786322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57104351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102800 + ... + 103353.

It is an arithmetic number, because the mean of its divisors is an integer number (14327703).

Almost surely, 2^57104381 is an apocalyptic number.

It is an amenable number.

57104381 is a deficient number, since it is larger than the sum of its proper divisors (206431).

57104381 is a wasteful number, since it uses less digits than its factorization.

57104381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206430.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 57104381 is about 7556.7440740044. The cubic root of 57104381 is about 385.0848882362.

The spelling of 57104381 in words is "fifty-seven million, one hundred four thousand, three hundred eighty-one".