56097381 has 8 divisors (see below), whose sum is σ = 75458880. Its totient is φ = 37067072.

The previous prime is 56097359. The next prime is 56097401. The reversal of 56097381 is 18379065.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56097381 - 2⁶ = 56097317 is a prime.

It is a super-2 number, since 2×56097381² = 6293832310118322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56097341) 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 7 ways as a sum of consecutive naturals, for example, 82401 + ... + 83078.

It is an arithmetic number, because the mean of its divisors is an integer number (9432360).

Almost surely, 2^56097381 is an apocalyptic number.

It is an amenable number.

56097381 is a deficient number, since it is larger than the sum of its proper divisors (19361499).

56097381 is a wasteful number, since it uses less digits than its factorization.

56097381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165595.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 56097381 is about 7489.8184891224. The cubic root of 56097381 is about 382.8078737889.

The spelling of 56097381 in words is "fifty-six million, ninety-seven thousand, three hundred eighty-one".