106055591 has 2 divisors, whose sum is σ = 106055592. Its totient is φ = 106055590.

The previous prime is 106055567. The next prime is 106055603. The reversal of 106055591 is 195550601.

It is a strong prime.

It is an emirp because it is prime and its reverse (195550601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 106055591 - 2⁶ = 106055527 is a prime.

It is a super-2 number, since 2×106055591² = 22495576764718562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106055791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53027795 + 53027796.

It is an arithmetic number, because the mean of its divisors is an integer number (53027796).

Almost surely, 2^106055591 is an apocalyptic number.

106055591 is a deficient number, since it is larger than the sum of its proper divisors (1).

106055591 is an equidigital number, since it uses as much as digits as its factorization.

106055591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6750, while the sum is 32.

The square root of 106055591 is about 10298.3295247336. The cubic root of 106055591 is about 473.3450677622.

The spelling of 106055591 in words is "one hundred six million, fifty-five thousand, five hundred ninety-one".