55677725566 has 16 divisors (see below), whose sum is σ = 83624562000. Its totient is φ = 27802897408.

The previous prime is 55677725563. The next prime is 55677725567. The reversal of 55677725566 is 66552777655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55677725563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5910276 + ... + 5919688.

It is an arithmetic number, because the mean of its divisors is an integer number (5226535125).

Almost surely, 2^55677725566 is an apocalyptic number.

55677725566 is a deficient number, since it is larger than the sum of its proper divisors (27946836434).

55677725566 is a wasteful number, since it uses less digits than its factorization.

55677725566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12923.

The product of its digits is 92610000, while the sum is 61.

The spelling of 55677725566 in words is "fifty-five billion, six hundred seventy-seven million, seven hundred twenty-five thousand, five hundred sixty-six".