55879723747 has 4 divisors (see below), whose sum is σ = 56254755600. Its totient is φ = 55504691896.

The previous prime is 55879723721. The next prime is 55879723777. The reversal of 55879723747 is 74732797855.

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 55879723747 - 2³⁵ = 21519985379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55879723717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187515703 + ... + 187516000.

It is an arithmetic number, because the mean of its divisors is an integer number (14063688900).

Almost surely, 2^55879723747 is an apocalyptic number.

55879723747 is a deficient number, since it is larger than the sum of its proper divisors (375031853).

55879723747 is a wasteful number, since it uses less digits than its factorization.

55879723747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375031852.

The product of its digits is 103723200, while the sum is 64.

The spelling of 55879723747 in words is "fifty-five billion, eight hundred seventy-nine million, seven hundred twenty-three thousand, seven hundred forty-seven".