56229919 has 2 divisors, whose sum is σ = 56229920. Its totient is φ = 56229918.

The previous prime is 56229913. The next prime is 56229977. The reversal of 56229919 is 91992265.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56229919 - 2⁷ = 56229791 is a prime.

It is a super-3 number, since 3×56229919³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56229913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28114959 + 28114960.

It is an arithmetic number, because the mean of its divisors is an integer number (28114960).

Almost surely, 2^56229919 is an apocalyptic number.

56229919 is a deficient number, since it is larger than the sum of its proper divisors (1).

56229919 is an equidigital number, since it uses as much as digits as its factorization.

56229919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 87480, while the sum is 43.

The square root of 56229919 is about 7498.6611471649. The cubic root of 56229919 is about 383.1091159264.

The spelling of 56229919 in words is "fifty-six million, two hundred twenty-nine thousand, nine hundred nineteen".