55982859 has 4 divisors (see below), whose sum is σ = 74643816. Its totient is φ = 37321904.

The previous prime is 55982837. The next prime is 55982863. The reversal of 55982859 is 95828955.

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 55982859 - 2⁵ = 55982827 is a prime.

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, 9330474 + ... + 9330479.

It is an arithmetic number, because the mean of its divisors is an integer number (18660954).

Almost surely, 2^55982859 is an apocalyptic number.

55982859 is a deficient number, since it is larger than the sum of its proper divisors (18660957).

55982859 is a wasteful number, since it uses less digits than its factorization.

55982859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18660956.

The product of its digits is 1296000, while the sum is 51.

The square root of 55982859 is about 7482.1694046580. The cubic root of 55982859 is about 382.5471973884.

The spelling of 55982859 in words is "fifty-five million, nine hundred eighty-two thousand, eight hundred fifty-nine".