55140099 has 16 divisors (see below), whose sum is σ = 84341760. Its totient is φ = 31389120.

The previous prime is 55140079. The next prime is 55140119. The reversal of 55140099 is 99004155.

55140099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55140079) and next prime (55140119).

It is not a de Polignac number, because 55140099 - 2⁵ = 55140067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55140079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 847 + ... + 10535.

It is an arithmetic number, because the mean of its divisors is an integer number (5271360).

Almost surely, 2^55140099 is an apocalyptic number.

55140099 is a deficient number, since it is larger than the sum of its proper divisors (29201661).

55140099 is a wasteful number, since it uses less digits than its factorization.

55140099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9970.

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 55140099 is about 7425.6379523917. The cubic root of 55140099 is about 380.6178752229.

The spelling of 55140099 in words is "fifty-five million, one hundred forty thousand, ninety-nine".