55463393 has 2 divisors, whose sum is σ = 55463394. Its totient is φ = 55463392.

The previous prime is 55463389. The next prime is 55463423. The reversal of 55463393 is 39336455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51955264 + 3508129 = 7208^2 + 1873^2 .

It is a cyclic number.

It is not a de Polignac number, because 55463393 - 2² = 55463389 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (55463323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27731696 + 27731697.

It is an arithmetic number, because the mean of its divisors is an integer number (27731697).

Almost surely, 2^55463393 is an apocalyptic number.

It is an amenable number.

55463393 is a deficient number, since it is larger than the sum of its proper divisors (1).

55463393 is an equidigital number, since it uses as much as digits as its factorization.

55463393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145800, while the sum is 38.

The square root of 55463393 is about 7447.3749066366. The cubic root of 55463393 is about 381.3602978193.

The spelling of 55463393 in words is "fifty-five million, four hundred sixty-three thousand, three hundred ninety-three".