56454289 has 2 divisors, whose sum is σ = 56454290. Its totient is φ = 56454288.

The previous prime is 56454287. The next prime is 56454323. The reversal of 56454289 is 98245465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36204289 + 20250000 = 6017^2 + 4500^2 .

It is a cyclic number.

It is not a de Polignac number, because 56454289 - 2¹ = 56454287 is a prime.

Together with 56454287, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (56454283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28227144 + 28227145.

It is an arithmetic number, because the mean of its divisors is an integer number (28227145).

Almost surely, 2^56454289 is an apocalyptic number.

It is an amenable number.

56454289 is a deficient number, since it is larger than the sum of its proper divisors (1).

56454289 is an equidigital number, since it uses as much as digits as its factorization.

56454289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 345600, while the sum is 43.

The square root of 56454289 is about 7513.6069234423. The cubic root of 56454289 is about 383.6180034594.

The spelling of 56454289 in words is "fifty-six million, four hundred fifty-four thousand, two hundred eighty-nine".