55982899 has 4 divisors (see below), whose sum is σ = 63980464. Its totient is φ = 47985336.

The previous prime is 55982881. The next prime is 55982959. The reversal of 55982899 is 99828955.

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

It is not a de Polignac number, because 55982899 - 2⁹ = 55982387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55982809) 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, 3998772 + ... + 3998785.

It is an arithmetic number, because the mean of its divisors is an integer number (15995116).

Almost surely, 2^55982899 is an apocalyptic number.

55982899 is a deficient number, since it is larger than the sum of its proper divisors (7997565).

55982899 is an equidigital number, since it uses as much as digits as its factorization.

55982899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7997564.

The product of its digits is 2332800, while the sum is 55.

The square root of 55982899 is about 7482.1720776790. The cubic root of 55982899 is about 382.5472884990.

The spelling of 55982899 in words is "fifty-five million, nine hundred eighty-two thousand, eight hundred ninety-nine".