55177603450 has 24 divisors (see below), whose sum is σ = 102638110428. Its totient is φ = 22069370880.

The previous prime is 55177603379. The next prime is 55177603489. The reversal of 55177603450 is 5430677155.

It can be written as a sum of positive squares in 6 ways, for example, as 46548494001 + 8629109449 = 215751^2 + 92893^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55177603397 and 55177603406.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 789114 + ... + 856186.

Almost surely, 2^55177603450 is an apocalyptic number.

55177603450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55177603450 is a deficient number, since it is larger than the sum of its proper divisors (47460506978).

55177603450 is a wasteful number, since it uses less digits than its factorization.

55177603450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83538 (or 83533 counting only the distinct ones).

The product of its (nonzero) digits is 441000, while the sum is 43.

The spelling of 55177603450 in words is "fifty-five billion, one hundred seventy-seven million, six hundred three thousand, four hundred fifty".