55978696705 has 8 divisors (see below), whose sum is σ = 70709932800. Its totient is φ = 42425959536.

The previous prime is 55978696649. The next prime is 55978696729. The reversal of 55978696705 is 50769687955.

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

It is a cyclic number.

It is not a de Polignac number, because 55978696705 - 2⁷ = 55978696577 is a prime.

It is a super-2 number, since 2×55978696705² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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, 294624625 + ... + 294624814.

It is an arithmetic number, because the mean of its divisors is an integer number (8838741600).

Almost surely, 2^55978696705 is an apocalyptic number.

It is an amenable number.

55978696705 is a deficient number, since it is larger than the sum of its proper divisors (14731236095).

55978696705 is a wasteful number, since it uses less digits than its factorization.

55978696705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589249463.

The product of its (nonzero) digits is 142884000, while the sum is 67.

The spelling of 55978696705 in words is "fifty-five billion, nine hundred seventy-eight million, six hundred ninety-six thousand, seven hundred five".