106555511 has 4 divisors (see below), whose sum is σ = 106734000. Its totient is φ = 106377024.

The previous prime is 106555487. The next prime is 106555549. The reversal of 106555511 is 115555601.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 115555601 = 7 ⋅16507943.

It is a cyclic number.

It is not a de Polignac number, because 106555511 - 2⁶ = 106555447 is a prime.

It is a super-2 number, since 2×106555511² = 22708153848942242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106555571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88346 + ... + 89543.

It is an arithmetic number, because the mean of its divisors is an integer number (26683500).

Almost surely, 2^106555511 is an apocalyptic number.

106555511 is a deficient number, since it is larger than the sum of its proper divisors (178489).

106555511 is an equidigital number, since it uses as much as digits as its factorization.

106555511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178488.

The product of its (nonzero) digits is 3750, while the sum is 29.

The square root of 106555511 is about 10322.5728866402. The cubic root of 106555511 is about 474.0876463228.

The spelling of 106555511 in words is "one hundred six million, five hundred fifty-five thousand, five hundred eleven".