55911099 has 8 divisors (see below), whose sum is σ = 74995200. Its totient is φ = 37050536.

The previous prime is 55911071. The next prime is 55911127. The reversal of 55911099 is 99011955.

It is an interprime number because it is at equal distance from previous prime (55911071) and next prime (55911127).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55911099 - 2⁵ = 55911067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55915099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55299 + ... + 56300.

It is an arithmetic number, because the mean of its divisors is an integer number (9374400).

Almost surely, 2^55911099 is an apocalyptic number.

55911099 is a deficient number, since it is larger than the sum of its proper divisors (19084101).

55911099 is a wasteful number, since it uses less digits than its factorization.

55911099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111769.

The product of its (nonzero) digits is 18225, while the sum is 39.

The square root of 55911099 is about 7477.3724663146. The cubic root of 55911099 is about 382.3836751659.

The spelling of 55911099 in words is "fifty-five million, nine hundred eleven thousand, ninety-nine".