56453669 has 2 divisors, whose sum is σ = 56453670. Its totient is φ = 56453668.

The previous prime is 56453629. The next prime is 56453671. The reversal of 56453669 is 96635465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41344900 + 15108769 = 6430^2 + 3887^2 .

It is a cyclic number.

It is not a de Polignac number, because 56453669 - 2²⁰ = 55405093 is a prime.

It is a super-2 number, since 2×56453669² = 6374033487123122, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 56453671, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56453629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28226834 + 28226835.

It is an arithmetic number, because the mean of its divisors is an integer number (28226835).

Almost surely, 2^56453669 is an apocalyptic number.

It is an amenable number.

56453669 is a deficient number, since it is larger than the sum of its proper divisors (1).

56453669 is an equidigital number, since it uses as much as digits as its factorization.

56453669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 583200, while the sum is 44.

The square root of 56453669 is about 7513.5656648491. The cubic root of 56453669 is about 383.6165991136.

The spelling of 56453669 in words is "fifty-six million, four hundred fifty-three thousand, six hundred sixty-nine".