55607979 has 8 divisors (see below), whose sum is σ = 84736000. Its totient is φ = 31775976.

The previous prime is 55607953. The next prime is 55607989. The reversal of 55607979 is 97970655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55607979 - 2⁸ = 55607723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55607989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1323979 + ... + 1324020.

It is an arithmetic number, because the mean of its divisors is an integer number (10592000).

Almost surely, 2^55607979 is an apocalyptic number.

55607979 is a deficient number, since it is larger than the sum of its proper divisors (29128021).

55607979 is a wasteful number, since it uses less digits than its factorization.

55607979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2648009.

The product of its (nonzero) digits is 595350, while the sum is 48.

The square root of 55607979 is about 7457.0757673501. The cubic root of 55607979 is about 381.6913961801.

The spelling of 55607979 in words is "fifty-five million, six hundred seven thousand, nine hundred seventy-nine".