55262191 has 2 divisors, whose sum is σ = 55262192. Its totient is φ = 55262190.

The previous prime is 55262167. The next prime is 55262209. The reversal of 55262191 is 19126255.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55262191 - 2⁷ = 55262063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55262131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27631095 + 27631096.

It is an arithmetic number, because the mean of its divisors is an integer number (27631096).

Almost surely, 2^55262191 is an apocalyptic number.

55262191 is a deficient number, since it is larger than the sum of its proper divisors (1).

55262191 is an equidigital number, since it uses as much as digits as its factorization.

55262191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 31.

The square root of 55262191 is about 7433.8543838308. The cubic root of 55262191 is about 380.8985913268.

The spelling of 55262191 in words is "fifty-five million, two hundred sixty-two thousand, one hundred ninety-one".