55277777774 has 16 divisors (see below), whose sum is σ = 84047308800. Its totient is φ = 27262683864.

The previous prime is 55277777717. The next prime is 55277777777. The reversal of 55277777774 is 47777777255.

It is a self number, because there is not a number n which added to its sum of digits gives 55277777774.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55277777777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4202 + ... + 332525.

It is an arithmetic number, because the mean of its divisors is an integer number (5252956800).

Almost surely, 2^55277777774 is an apocalyptic number.

55277777774 is a deficient number, since it is larger than the sum of its proper divisors (28769531026).

55277777774 is a wasteful number, since it uses less digits than its factorization.

55277777774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337847.

The product of its digits is 164708600, while the sum is 65.

The spelling of 55277777774 in words is "fifty-five billion, two hundred seventy-seven million, seven hundred seventy-seven thousand, seven hundred seventy-four".