55196863 has 2 divisors, whose sum is σ = 55196864. Its totient is φ = 55196862.

The previous prime is 55196819. The next prime is 55196923. The reversal of 55196863 is 36869155.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55196863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55196363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27598431 + 27598432.

It is an arithmetic number, because the mean of its divisors is an integer number (27598432).

Almost surely, 2^55196863 is an apocalyptic number.

55196863 is a deficient number, since it is larger than the sum of its proper divisors (1).

55196863 is an equidigital number, since it uses as much as digits as its factorization.

55196863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 43.

The square root of 55196863 is about 7429.4591323999. The cubic root of 55196863 is about 380.7484395116.

The spelling of 55196863 in words is "fifty-five million, one hundred ninety-six thousand, eight hundred sixty-three".