56198239 has 2 divisors, whose sum is σ = 56198240. Its totient is φ = 56198238.

The previous prime is 56198237. The next prime is 56198251. The reversal of 56198239 is 93289165.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56198239 - 2¹ = 56198237 is a prime.

It is a super-2 number, since 2×56198239² = 6316484133402242, which contains 22 as substring.

Together with 56198237, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 56198195 and 56198204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56198231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28099119 + 28099120.

It is an arithmetic number, because the mean of its divisors is an integer number (28099120).

Almost surely, 2^56198239 is an apocalyptic number.

56198239 is a deficient number, since it is larger than the sum of its proper divisors (1).

56198239 is an equidigital number, since it uses as much as digits as its factorization.

56198239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 43.

The square root of 56198239 is about 7496.5484724638. The cubic root of 56198239 is about 383.0371543738.

The spelling of 56198239 in words is "fifty-six million, one hundred ninety-eight thousand, two hundred thirty-nine".