55186093 has 2 divisors, whose sum is σ = 55186094. Its totient is φ = 55186092.

The previous prime is 55186081. The next prime is 55186111. The reversal of 55186093 is 39068155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28281124 + 26904969 = 5318^2 + 5187^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55186093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55186073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27593046 + 27593047.

It is an arithmetic number, because the mean of its divisors is an integer number (27593047).

Almost surely, 2^55186093 is an apocalyptic number.

It is an amenable number.

55186093 is a deficient number, since it is larger than the sum of its proper divisors (1).

55186093 is an equidigital number, since it uses as much as digits as its factorization.

55186093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 55186093 is about 7428.7342798084. The cubic root of 55186093 is about 380.7236740496.

It can be divided in two parts, 5518 and 6093, that added together give a palindrome (11611).

The spelling of 55186093 in words is "fifty-five million, one hundred eighty-six thousand, ninety-three".