56445953 has 2 divisors, whose sum is σ = 56445954. Its totient is φ = 56445952.

The previous prime is 56445937. The next prime is 56445989. The reversal of 56445953 is 35954465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56445169 + 784 = 7513^2 + 28^2 .

It is a cyclic number.

It is not a de Polignac number, because 56445953 - 2⁴ = 56445937 is a prime.

It is a super-2 number, since 2×56445953² = 6372291220156418, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56445953.

It is not a weakly prime, because it can be changed into another prime (56445553) 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, 28222976 + 28222977.

It is an arithmetic number, because the mean of its divisors is an integer number (28222977).

Almost surely, 2^56445953 is an apocalyptic number.

It is an amenable number.

56445953 is a deficient number, since it is larger than the sum of its proper divisors (1).

56445953 is an equidigital number, since it uses as much as digits as its factorization.

56445953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324000, while the sum is 41.

The square root of 56445953 is about 7513.0521760467. The cubic root of 56445953 is about 383.5991209432.

The spelling of 56445953 in words is "fifty-six million, four hundred forty-five thousand, nine hundred fifty-three".