56489197 has 2 divisors, whose sum is σ = 56489198. Its totient is φ = 56489196.

The previous prime is 56489179. The next prime is 56489231. The reversal of 56489197 is 79198465.

Together with previous prime (56489179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43283241 + 13205956 = 6579^2 + 3634^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56489197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56489197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56489297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28244598 + 28244599.

It is an arithmetic number, because the mean of its divisors is an integer number (28244599).

Almost surely, 2^56489197 is an apocalyptic number.

It is an amenable number.

56489197 is a deficient number, since it is larger than the sum of its proper divisors (1).

56489197 is an equidigital number, since it uses as much as digits as its factorization.

56489197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 49.

The square root of 56489197 is about 7515.9295499625. The cubic root of 56489197 is about 383.6970560777.

The spelling of 56489197 in words is "fifty-six million, four hundred eighty-nine thousand, one hundred ninety-seven".