55005499 has 4 divisors (see below), whose sum is σ = 55572664. Its totient is φ = 54438336.

The previous prime is 55005481. The next prime is 55005521. The reversal of 55005499 is 99450055.

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

It is a cyclic number.

It is not a de Polignac number, because 55005499 - 2²¹ = 52908347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55005449) 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, 283437 + ... + 283630.

It is an arithmetic number, because the mean of its divisors is an integer number (13893166).

Almost surely, 2^55005499 is an apocalyptic number.

55005499 is a deficient number, since it is larger than the sum of its proper divisors (567165).

55005499 is an equidigital number, since it uses as much as digits as its factorization.

55005499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567164.

The product of its (nonzero) digits is 40500, while the sum is 37.

The square root of 55005499 is about 7416.5692203336. The cubic root of 55005499 is about 380.3079198571.

The spelling of 55005499 in words is "fifty-five million, five thousand, four hundred ninety-nine".