55508099 has 4 divisors (see below), whose sum is σ = 55790064. Its totient is φ = 55226136.

The previous prime is 55508027. The next prime is 55508107. The reversal of 55508099 is 99080555.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55508099 is a prime.

It is a super-2 number, since 2×55508099² = 6162298109187602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55558099) 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, 140687 + ... + 141080.

It is an arithmetic number, because the mean of its divisors is an integer number (13947516).

Almost surely, 2^55508099 is an apocalyptic number.

55508099 is a deficient number, since it is larger than the sum of its proper divisors (281965).

55508099 is a wasteful number, since it uses less digits than its factorization.

55508099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281964.

The product of its (nonzero) digits is 81000, while the sum is 41.

The square root of 55508099 is about 7450.3757623357. The cubic root of 55508099 is about 381.4627348432.

The spelling of 55508099 in words is "fifty-five million, five hundred eight thousand, ninety-nine".