55277782750 has 16 divisors (see below), whose sum is σ = 103480009776. Its totient is φ = 22111113000.

The previous prime is 55277782741. The next prime is 55277782771. The reversal of 55277782750 is 5728777255.

It is a junction number, because it is equal to n+sod(n) for n = 55277782691 and 55277782700.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110555316 + ... + 110555815.

It is an arithmetic number, because the mean of its divisors is an integer number (6467500611).

Almost surely, 2^55277782750 is an apocalyptic number.

55277782750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55277782750 is a deficient number, since it is larger than the sum of its proper divisors (48202227026).

55277782750 is a wasteful number, since it uses less digits than its factorization.

55277782750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221111148 (or 221111138 counting only the distinct ones).

The product of its (nonzero) digits is 9604000, while the sum is 55.

The spelling of 55277782750 in words is "fifty-five billion, two hundred seventy-seven million, seven hundred eighty-two thousand, seven hundred fifty".