55777555332244 has 12 divisors (see below), whose sum is σ = 97615623830004. Its totient is φ = 27887377095104.

The previous prime is 55777555332211. The next prime is 55777555332263. The reversal of 55777555332244 is 44223355577755.

55777555332244 = T_6097952 + T_6097953 + T_6097954.

It can be written as a sum of positive squares in 2 ways, for example, as 8305289972100 + 47472265360144 = 2881890^2 + 6890012^2 .

It is a super-2 number, since 2×55777555332244² (a number of 28 digits) contains 22 as substring.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350053147 + ... + 350212450.

It is an arithmetic number, because the mean of its divisors is an integer number (8134635319167).

Almost surely, 2^{55777555332244} is an apocalyptic number.

55777555332244 is the 6097954-th centered triangular number.

It is an amenable number.

55777555332244 is a deficient number, since it is larger than the sum of its proper divisors (41838068497760).

55777555332244 is a wasteful number, since it uses less digits than its factorization.

55777555332244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700285514 (or 700285512 counting only the distinct ones).

The product of its digits is 617400000, while the sum is 64.

The spelling of 55777555332244 in words is "fifty-five trillion, seven hundred seventy-seven billion, five hundred fifty-five million, three hundred thirty-two thousand, two hundred forty-four".