56949791 has 2 divisors, whose sum is σ = 56949792. Its totient is φ = 56949790.

The previous prime is 56949773. The next prime is 56949803. The reversal of 56949791 is 19794965.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56949791 - 2¹⁸ = 56687647 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56949731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28474895 + 28474896.

It is an arithmetic number, because the mean of its divisors is an integer number (28474896).

Almost surely, 2^56949791 is an apocalyptic number.

56949791 is a deficient number, since it is larger than the sum of its proper divisors (1).

56949791 is an equidigital number, since it uses as much as digits as its factorization.

56949791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 612360, while the sum is 50.

The square root of 56949791 is about 7546.5085304398. The cubic root of 56949791 is about 384.7370802873.

The spelling of 56949791 in words is "fifty-six million, nine hundred forty-nine thousand, seven hundred ninety-one".