56839091 has 2 divisors, whose sum is σ = 56839092. Its totient is φ = 56839090.

The previous prime is 56839087. The next prime is 56839093. The reversal of 56839091 is 19093865.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56839091 - 2² = 56839087 is a prime.

Together with 56839093, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56839093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28419545 + 28419546.

It is an arithmetic number, because the mean of its divisors is an integer number (28419546).

Almost surely, 2^56839091 is an apocalyptic number.

56839091 is a deficient number, since it is larger than the sum of its proper divisors (1).

56839091 is an equidigital number, since it uses as much as digits as its factorization.

56839091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 56839091 is about 7539.1704450821. The cubic root of 56839091 is about 384.4876323680.

The spelling of 56839091 in words is "fifty-six million, eight hundred thirty-nine thousand, ninety-one".