56049381 has 8 divisors (see below), whose sum is σ = 83036160. Its totient is φ = 37366236.

The previous prime is 56049379. The next prime is 56049397. The reversal of 56049381 is 18394065.

56049381 is a `hidden beast` number, since 560 + 4 + 93 + 8 + 1 = 666.

It is not a de Polignac number, because 56049381 - 2¹ = 56049379 is a prime.

It is a super-2 number, since 2×56049381² = 6283066220966322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56049311) 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, 1037925 + ... + 1037978.

It is an arithmetic number, because the mean of its divisors is an integer number (10379520).

Almost surely, 2^56049381 is an apocalyptic number.

It is an amenable number.

56049381 is a deficient number, since it is larger than the sum of its proper divisors (26986779).

56049381 is a wasteful number, since it uses less digits than its factorization.

56049381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075912 (or 2075906 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 56049381 is about 7486.6134533579. The cubic root of 56049381 is about 382.6986588194.

The spelling of 56049381 in words is "fifty-six million, forty-nine thousand, three hundred eighty-one".